davsco
Ultimate Member
hi, i want to sbr a pcc. i'm looking at an odin 7.5" 9mm barrel, in an aero slick sided ar-15 upper receiver, with an aero atlas 7" handguard. i haven't selected it but will also have a comp on the barrel. see any issues?
that's what i'm trying to figure out, the acceptable geometry. rrg is saying his 10.5 barrel works inside a 12 handguard. but ix is saying his 10.5 barrel works inside a 9 handguard. those seem a little contradictory, but perhaps depends on the comp and how far out the ports start. looking at ix's gun, i'd say the handguard to barrel relationship looks pretty good. maybe i should be looking at an 8-8.5" barrel.
that's what i'm trying to figure out, the acceptable geometry. rrg is saying his 10.5 barrel works inside a 12 handguard. but ix is saying his 10.5 barrel works inside a 9 handguard. those seem a little contradictory, but perhaps depends on the comp and how far out the ports start. looking at ix's gun, i'd say the handguard to barrel relationship looks pretty good. maybe i should be looking at an 8-8.5" barrel.
Only comment I have is SBR needs to have 29" OAL (excluding muzzle device, unless its pinned). 8.5" barrel is probably too short. It is for my set up. 7 or 8" barrel works on a pistol (with a brace) because it does not need to comply with stupid MD Copycat rifle rules.
He's in VA so he doesn't have to play by our stupid rules.
My 10.5" is 28.75" based on measurements against my 16" AR so I will have to go with a Magpul ACS stock to make the 29" mark.
Here is my 10.5” 9MM with a 9” ATLAS S-One handguard and a VG6 Precision GAMMA 9MM. With a 7.5” barrel measuring closer to 7” installed and the ATLAS 7” actually being 7.25” you may be pretty close to the handguard with a muzzle device. I’d get everything but the muzzle device and see how much room you have to work with so you don’t spend a bunch of money on something that’s going to end up blasting the handguard.