Bravo Mk2 300 blackout

[NHbowhunter]

I have 8.5" barrel, running suppressed subsonics with a Omega 7.62 is stupid quiet.

Same for my 7.5" pistol upper with Gemtech GMT-300BLK suppressor and subsonic 220gr ammo, although I am going to try a few shorter .30cal cans to see if I can lighten the build and still get the same results.

[bamashooter]

Just sold it and all the ammo (144/125) but my 9" ran flawlessly. The 125s averaged 1977 fps MV and the 144s averaged 1830. Hit a large snapping turtle square in the back and it looked like ied aftermath. Pretty much the same deal on an armadillo.

[fedupflyer]

For 300 BO and Magpul mags, you are gonna wanna used the 300 BO mags that Magpul makes.
Experienced many double feeds during a competition shooting with the regular mags.

[NHbowhunter]

For 300 BO and Magpul mags, you are gonna wanna used the 300 BO mags that Magpul makes.
Experienced many double feeds during a competition shooting with the regular mags.

+1 for the Magpul 300BO mags

I haven't experienced double feeds with the 5.56 Magpul mags, so that is not the reason I use the Magpul 300BO mags. The real reason is that I can feel and see the difference between the 300BO and 5.56 mags so I don't accidentally get them mixed up.

[duece71]

I have the BCM 9” on a BCM registered lower. I have an SF 762 SOCOM mini which isn’t the quietest but it works. No issues with subs or supers out of the metal GI mag. I have one Magpul .300 blk mag which works great. I just need to start reloading and it will be set.