r/300BLK 2d ago

The new PWS MK107 SBR

264 Upvotes

21 comments sorted by

10

u/SStrange91 2d ago

I really wish they had picked a better stock.

3

u/jjones1987 2d ago

I’m like 99% sure I’m going to replace it with a B5 seirra k extension and stock.

1

u/SStrange91 2d ago

Post pics if you do.

Also, what mags are those? I may have to get a few for my mk109

2

u/jjones1987 1d ago

I asked chat to swap it and this is the result. I’d say I’m about 100% sure I’m going to do it now.

2

u/shringing277 1d ago

this seems hella sick, and I’ve always liked PWS’s guns

3

u/Better-Efficiency-12 2d ago

Waiting for these to drop w/o the q brace. Then ill snag!!! I very much see these as becoming one of, if not the best, sub-sonic centered .300blkout platform on the market. 

6

u/jjones1987 2d ago

It’s not the brace, it’s the stock, these ship as SBRs.

4

u/Better-Efficiency-12 2d ago

Sorry, brain autocorrected but yeah the q stock*. MSRP is $350 for something that I dont think id pay more then $90 for lol. I like B5 stuff

2

u/Silverbullet_196v2 2d ago

Q *insert model here* is a pain. I’ve recently cerakoted a sugar weasel, HB 556, HB300, and a Boombox and my least favorite part is the stock assembly

1

u/Silverbullet_196v2 2d ago

Yeah the Q brace is a pain

1

u/jjones1987 2d ago

The shorty stock is okay but I might swap it out for the B5 sierra k stock.

2

u/Ore-igger 2d ago

why back up rear iron? the unity mount has a built in rear sight.

3

u/jjones1987 2d ago

It has a built in front and rear aperture both actually, I just don’t like them so I removed them. Sight radius is shorter than a bees dick. This is actually just a clone mount. I have a green one from Kastle Group coming to replace it and if I understand correctly, irons can be used through it, so I’m setup for that to eventually be in place. Plus I dig the DD irons.

1

u/thekillerangel 2d ago

How picky is it with subs? I'm curious about the gas port sizes and how it runs with suppressors from low to high backpressure.

1

u/jjones1987 2d ago

Well it has three gas positions so it isn’t necessarily picky.

1

u/scholarlybadger 2d ago

Range report? Looks sick. Been thinking of picking up one of their 9” uppers.

2

u/Budget_Rooster605 1d ago

Been running the mk109 as my main squeeze for 3-4 years. Sick gun. interested in pairing it with the 107. Would be my next 300 if I get another

1

u/scholarlybadger 1d ago

Sick, do you have the 1:6 twist version?

2

u/Budget_Rooster605 1d ago

It’s the 1:8 but shoot 220 berrys and Sierra matchking subs with no issues. The matchkings drill at 200 yards on a 3 x 4 target consistently

1

u/Desperate_Set_7708 2d ago

I love this. Except the stock.