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The MPXSD

Updated: Dec 1, 2025

My Sig MPXSD and how I have it setup

all right hey what's up guys so today

0:11

let's talk about the MPX now the MPX uh

0:14

for me personally has been a phenomenal

0:16

firearm so it shoots when I want it to

0:18

shoot it doesn't shoot when I don't want

0:20

it to shoot Sig

0:22

joke here I come here I come oh uh and

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it does uh different things that I

0:29

personally wanted right which is a small

0:31

platform kind of thing but also not

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super small so just like the same

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concept as uh I'm not a really I'm not

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into like Sub Compact guns uh I also am

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not really into Sub Compact pcc's uh not

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to say that they're not useful they

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absolutely are and if I found myself

0:49

needing one it would be nice to have one

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but as for like my normal day-to-day or

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training practice or just personal

0:57

defense whatever it is um I I prefer

1:00

larger Firearms or larger in the

1:03

category where I can fit more things on

1:05

it and I can actually do a lot with it

1:07

so where I can put lasers lights things

1:11

like that that won't be like weird so if

1:12

you've ever tried to put like a laser

1:14

and a light on a tp9 uh you know my uh

1:17

or or you know what I'm talking about

1:19

the same with like an MP5 uh or anything

1:22

smaller even so you you look at like

1:24

some of those sub guns or pcc's and

1:26

you're like man that's uh that's a

1:28

little rough so when the the Scorpion

1:33

came out like uh the V2 I think it was

1:36

when MPX came out when um I think the

1:39

apc9 was around that same area era if

1:42

I'm not mistaken don't quote me on it

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but when all those came out I started

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looking at them as options and I kind of

1:49

fell into the MPX pretty quick because I

1:52

borrowed one and found that it was

1:54

really useful mainly because it it had

1:56

like AR style controls that I can

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actually practice the same exact

2:01

manipulation stuff that I would be

2:02

practicing with an AR um although the

2:05

magazines were a little different right

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the 30 rounders are a little bit longer

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but different sizes but they still go

2:11

into a MAG well and they still do all

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the same things that a MAG does uh

2:15

happily it wasn't something that ran off

2:17

of Glock mags which uh there's it's

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problematic when it comes to a PCC or an

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ar9 or something like that so it's just

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something to think about

2:25

but overall my MPX has gone through some

2:28

phases so it started out as a Gen 2 8 in

2:32

so if you don't know the 8 in uh version

2:35

of these uh they were actually really

2:37

good uh the only downside was some

2:39

barrels were good and some barrels were

2:40

like Gaga so my Barrel ended up being

2:43

really good when it wasn't suppressed

2:46

the second I threw a suppressor on there

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she shot like 8 in groups at 25 yards

2:50

I'm like what is this so uh a lot of

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times I shot it unsuppressed which not a

2:55

big deal but it's not what I wanted it

2:57

for I wanted it to be a nice suppressed

3:00

like PCC or subgun and what I was

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looking for was something I could

3:05

practice in some certain ranges that

3:07

offer only pistol Bays this is a pistol

3:10

so I can kind of play around in that

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pistol calibers and also kind of play

3:14

around with uh practicing for rifle

3:16

stuff as well so I can do all the same

3:18

relatively same things uh as I I

3:21

progressed further I was like man I want

3:23

to suppress it and what I found was I

3:27

can swap a barrel and put the MP5 SD can

3:32

that B&T makes I know that was a lot of

3:34

acronyms but hopefully you followed uh

3:37

on this thing and I can suppress it so

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that it is an SD style or uh essentially

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a fully suppressed Barrel if that makes

3:47

sense so there there is no section on

3:50

this Barrel it bumps up almost to the

3:52

gas uh adjustment on the MPX that's

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where the can stops back here so it's a

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very long can it's shrouds over the

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actual barrel and I'll try and put some

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pictures of what it looks like up here

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um but the the can goes all the way on

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and it makes this thing super quiet um

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to the point that uh even 115 grain

4:15

coming out of this thing uh comes out

4:17

subsonic it's really cool so I'll try

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and get some pictures of my Chrono uh or

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a video of my Chrono shooting by it so

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you guys can see some some chronographed

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ammo and and see how quiet this thing is

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actually going uh it's it's stupid quiet

4:32

on the video it probably sounds exactly

4:35

like it sounds in real life it's kind of

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cool so because it is an SD style can or

4:41

setup um it does weigh a little bit more

4:44

obviously because I can is larger but

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I'll take that weight any day for what

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it offers so we're going to go tabletop

4:52

and I'll go through uh head to toe or

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tip to butt or whatever on this thing

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and kind of give you guys an overview of

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what it looks like and hopefully you'll

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see some uh clips of me shooting it in

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between and help you guys

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out all right guys so let's talk about

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the MPX now uh from head to toe or tip

5:31

to butt or whatever you want to call it

5:33

um it's uh honestly not that intricate

5:36

or crazy so if we go to uh the front of

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the gun right we're using an MP5 SD

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style can so this one is made by BNT and

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it's kind of blocked here the

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nomenclature but it is a B&T can that

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they made for the mp5s MP5 SDS this is

5:55

the compact so there is a longer one I

5:58

went for compact one although compact

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meaning it's still like 12 in it's

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humongous so um it it is what it is I I

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wanted something smaller so I went with

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something smaller now on top of that I

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also uh had to use the barrel the barrel

6:13

is from uh uh what is it in Le We Trust

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is the company that makes it uh they

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make fantastic barrels uh I heard so and

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so far I've been pretty happy with the

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barrel and it does really well uh they

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do make regular barrels so if that's

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something you're looking for or a 22

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conversion barrel for the MPX so kind of

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cool they have like other options for

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you so if you wanted to build an upper

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to do multiple things or multiple

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calibers you can or multiple elers for

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different calibers you can so from there

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um I do have a QD on here which is rare

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for me to have a QD in the front but it

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is something I wanted uh I'm using a

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rail scales one uh rail scales makes a

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couple different types of qts this is

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one of the ones that goes in line

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so it's straight I kind of like this one

7:02

I do have a weird QD here that I found

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just lying around and she is longer than

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the actual rail skills QD it's

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interesting so oh now she's not

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hooking all right so I may have broken

7:18

it there we go so it is a little bit

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longer and it kind of is a little Shifty

7:23

I have one on on order but uh but we'll

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see right like things things uh

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disappear here here so uh going from

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there I do

7:33

have the uh Aeros Saka laser on here I

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really like this laser for something

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like this it is absolutely perfect um

7:40

it's not too bright like some people

7:42

have said uh it has a great viz laser so

7:46

on viz switch it over to viz when it's

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on viz it has a really bright G viz

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laser for what it is uh it also has

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three other modes which is laser only

7:58

illuminator only and then laser an

8:00

Illuminator it's super simple so very

8:03

nice it's got a great freaking button I

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don't know if you guys can hear that

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really good button um and then the

8:09

Illuminator has a little diffuser on it

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which is really helpful and under nods

8:15

this is a great great little setup for a

8:17

PCC in my opinion um it doesn't match up

8:19

to like some of the full power stuff I

8:20

use on a normal basis but it is really

8:22

good still um but so decent laser one

8:26

day I'll go a little bit more in depth

8:27

on it and you'll uh you'll get a flavor

8:29

on that one so then next to it I have a

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little modl it's also on an Aeros Saka

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Mount so it is nothing really wild it's

8:38

actually one of my older mod lights I

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think this is actually an okw so it's

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not even a plhv2 um but it's still a

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great modl it's been on this MPX since

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I've had it so it it has not uh it's not

8:50

been moved or removed so really good

8:53

Obviously good light so it's on here

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plays the game I also have one of the

8:57

Legacy mod buttons which are metal uh

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one of the ones they made out of

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aluminum back in the day or not back in

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the day but before they had the plastic

9:05

ones or the polymer ones and I actually

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use it to bridge the rail and the upper

9:13

so on an MPX if you didn't know this

9:15

upper uh comes all the way out to where

9:17

you see that seam hopefully you can see

9:19

that seam if you can't so there's a seam

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here and then the rail is the rest of

9:24

that and it cups around the upper over

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here and then the the Tak down pivot pin

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here that's what actually goes through

9:30

the upper the rail and everything and

9:33

tries to keep it in place the downside

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to that is that it's really wobbly so to

9:37

keep it from wobbling and you can see

9:39

it's super sturdy at this point uh I use

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a metal mod button to hold that bad boy

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on there or together I know it's not

9:48

like the best thing in the world but I'm

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not using this to um shoot very far so

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it kind of works out nicely I'm still

9:55

able to shoot 100 yards with this thing

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pretty easily um and I have quite quite

9:59

often so it's actually still usable but

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it's not something that I'm I'm worried

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about too much um but that is one of the

10:07

things that I've done to kind of rep or

10:09

to help myself with this another option

10:11

with an MPX is to use a diving board and

10:14

use your laser in the rear uh but making

10:17

sure that you set your buttons up so

10:18

they're not blocking your lasers or

10:19

illuminators or something like that so

10:21

just another option that's something you

10:22

can do with an MPX that's probably why

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most of those diving boards came out was

10:25

for that for that problem so going from

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there

10:30

right uh I have not changed anything to

10:31

the bolt it is exactly how it was uh

10:34

like I said the barrel was really easy

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to swap out if you've never done a

10:37

barrel swap on an MPX uh once you take

10:40

the rail off there's two bolts and you

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unscrew them you pop the the actual bolt

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or the the entire uh Barrel out and you

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pop the new Barrel on you put the two

10:50

bolts in and you're done so it's

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actually really really simple and uh and

10:55

made for an easy swap then from there

10:58

like I said all this is pretty much the

11:00

same as it was from

11:01

Factory uh so from the Gen 2 style uh

11:06

npxs uh minus the grip I swap the grip

11:09

out to a B5 I rather the B5 angle and

11:12

the feeli to it uh I don't like the the

11:15

one that I came with it was a little too

11:17

angular for me I'm not down with that uh

11:20

and so I swapped that out and then my uh

11:23

T1 that's up top it it is on a scaler

11:26

works Mount so nothing too wild there

11:29

it's a 1 193 I believe uh just because I

11:32

do lose some height over here when I put

11:34

my cheek on it so I actually want to

11:36

make it a 13 cuz it is a little bit

11:38

higher than I'd like at the moment so

11:40

I'll probably shrink it down a little

11:42

bit more and bring it back down to 1.7

11:44

but we'll see and then uh I did change

11:47

the charging handle to one of the ones

11:49

from uh radian I prefer the radian

11:51

charging handle than the stock one the

11:53

stock one was absolute trash so I would

11:55

definitely change that out if you were

11:57

playing with an MPX and then lastly I do

12:00

have the

12:01

collapsible uh stock that goes in and

12:03

out uh I forget what they call it or

12:05

brace really which I actually prefer in

12:09

the sense of like shooting with it I

12:11

don't like the folding ones the folding

12:13

ones uh come loose while I'm shooting

12:15

and I have collapsed them while shooting

12:17

uh so I had a bad bad luck with it so I

12:20

didn't really trust it enough to keep it

12:22

on there so I swapped over to something

12:23

like this uh eventually when I do spr

12:26

this if I do I'll put a real stock on it

12:29

and uh and get a little bit more length

12:30

out of it cuz I feel like this is a

12:32

little bit too short the only downside I

12:35

see to this other than it being short is

12:36

that it wobbles just a little bit so I

12:40

dislike that and I would like if

12:43

somebody has a fix for that put it in

12:45

the comments man and then lastly uh to

12:48

connect my sling I use this little QD

12:50

guy that's on 550 cord right you can

12:53

make these yourself if you find a QD cup

12:55

that has a uh lanyard hole on it and 550

12:59

cord uh I believe Colac makes a couple

13:02

of these or they make them so you can

13:05

buy them from them as well but when I

13:06

saw them on their website I was like oh

13:09

I think I could buy though or I think I

13:10

can make that so found it made it uh and

13:13

then the sling I use on this just like

13:15

most of my uh Firearms is going to be a

13:18

Frank Proctor uh shooting sling so Frank

13:21

Proctor has been a friend of mine for

13:23

such a long time and uh before it was

13:26

Frank Proctor shooting it was way of the

13:28

gun I worked for him from for a little

13:29

bit and I love the guy to death he's

13:31

he's such an awesome dude but he made an

13:33

awesome sling that I just can't uh not

13:36

love or use now the last thing I wanted

13:40

to talk about was the mags so with MPX

13:43

or MPX mags they are a little bit more

13:46

they're pricey just like any uh subgun

13:49

mag but they do have a limiter that's on

13:52

the inside to stop you at 20 rounds with

13:55

the short ones and 30 rounds with the

13:56

long ones that limiter there's a mod

13:59

ification and I think I did a video on

14:00

it a long time ago to pull the base pad

14:03

out pull out the spring and all that

14:04

jazz the follower that's in there or not

14:06

the follower but that base pad has this

14:08

like a long piece there that you can cut

14:11

right off and uh I've had all my mags

14:15

except for this one done uh because this

14:18

one's slightly newer and I haven't

14:20

gotten to it but the other ones have

14:22

been uh cut off and added another four

14:25

or five rounds to my magazines and with

14:29

without having to do anything fancy

14:30

other than cut that piece and uh they

14:33

have been reliable they have been

14:35

locking the bolt back all these years so

14:37

I am all for that modification for the

14:39

magazines it has done nothing but

14:42

brought more bullets to my mags it's

14:44

kind of nice so this one will get that

14:46

magazine uh uh modification soon and I

14:50

may be able to show you

14:52

guys with a flashlight what I'm talking

14:54

about see if it'll show through here

14:57

poow all right I if you guys can see

14:59

that little post that's going through

15:01

the light there right like the the one

15:03

that the light's not going through that

15:05

post is literally stopping the follower

15:07

at the top and it's just this little

15:09

limiter post that you cut cut kind of

15:12

cut off so just something to think about

15:14

um if you guys wanted to modify your

15:16

mags to give yourselves more ammo so

15:19

that's my MPX guys um honestly I

15:23

couldn't be happier with the SD style

15:26

modification to it and if you were for

15:29

that kind of modification or buying a

15:31

new can and obviously you can't shoot it

15:34

without the can so you're kind of like

15:35

married to it unless you buy another

15:37

upper and build an upper with this which

15:39

is an option and I I don't see that as a

15:41

bad option uh just more

15:44

pricey but between the barrel and the

15:46

can I think it was maybe 1,500 bucks or

15:50

a little bit less uh to make this thing

15:52

an SD and ridiculously quiet and um if

15:56

you look at the before and after

15:57

pictures I'll put up for you guys

15:59

how I had it with a silencer Co Omega 9k

16:02

and an 8 in Barrel it I lost a couple

16:05

inches off the end uh so it shrunk it

16:09

and it also made it more quiet so hope

16:12

this helps guys for those of you that

16:13

had questions on it and wanted to know

16:15

more and uh if you have more more

16:17

questions or any any additions that I

16:19

should add to this thing put it below

16:21

for me so I can uh check it out and see

16:23

if it's worth my time I appreciate it

16:25

boys take care

16:27

[Music]

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