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Page AR-15 » AR Piston Systems
AR Sponsor: bravocompany
Posted: 4/5/2021 11:57:17 AM EDT
I need a mount for my DA Sandman S for a PWS MK111 pistol (11.85” barrel) I’m going with JMAC but I need some help deciding exactly which version. So...

Which is better suited to shorter barrels 2 vent or 4 vent? And why?

Thanks in advance.
Link Posted: 4/9/2021 10:17:15 PM EDT
[#1]
@Cristo11

I cant answer the question, but if you dont mind me asking one...

I have DA suppressors....what is the advantage of the JMAC over the DA mounts?   I looked at their website, look to be well made.   I use DA FH on all of my rifles for the DA Sandman S and K suppressors

Thanks,

Bronc

Link Posted: 4/10/2021 4:28:39 PM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
@Cristo11

I cant answer the question, but if you dont mind me asking one...

I have DA suppressors....what is the advantage of the JMAC over the DA mounts?   I looked at their website, look to be well made.   I use DA FH on all of my rifles for the DA Sandman S and K suppressors

Thanks,

Bronc

View Quote



Bronc,

The JMAC mounts are a more effective brake than the DA mount in the 4 vent version & shorter & lighter than the DA in the 2 vent configuration.

They also make brakes/mounts that are threaded to be compatible with AK’s that DA doesn’t offer.

Basically they just bring a little more utility & function in a KeyMo Mount than DA offers.
Link Posted: 4/28/2021 1:16:56 PM EDT
[#3]
they are nitrided 17-4 stainless, much better material and finish choice and they appear to nicer machined, vs black oxide 4140, but the 4 vent will act better as a sacraficial baffle when used in conjunction with cans.  weight should not even kinda be a consideration...
Page AR-15 » AR Piston Systems
AR Sponsor: bravocompany
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