12.5” Build recommendations.

[Ccally15]

I’m starting a 12.5 build and wanted to run my spec sheet by the community to see what people were thinking. Planning on running it suppressed 95% of the time but dont want suppressor dedicated barrels because if the army has taught me anything it’s that stuff will break. So I want it to still be able to run unsuppressed if needed. Here’s what I got so far let me know if anyone has any recommendations or .02¢.

Colt m4 upper receiver
SLR Ion 11 hand guard.
Faxon 12.5 mid length
Rifle speed .625 adjustable block
LMT enhanced BCG
Radian ADAC-15 lower
Geissele SSA E
RE-A5 buffer tube
Sp-A5/H2 buffer and spring
Radian raptor SD charging handle
Dead air keymo muzzle brake

 

[mig1nc]

How did it work out? I found this thread in search results and am planning something similar around that Faxon barrel.

 

[346ci]

Scratch the faxon and go with one of these, https://www.blackstonearms.com/AR-Performance-5-56-CLE-12-5-SBR-Pistol-Barrel-p/arp556125.htm

 

[MSTN]

Look at the BCM MK 2 recoil system.

I use a Craddock Bartlein 11.3" with carbine +1" gas system and a Geissele MK 16 10.5" rail on my LE-DMR. Nothing I own is more accurate. I'm sure a Craddock 12.5" would give similar results.