Pinned suppresor build.

clandestine said:

1) AR Piston guns are louder when suppressed
2) Gas Piston AR's unlock faster than a D.I., this means extraction is more difficult.
3) Adjustable Gas/Carrier Keys and Carriers are terrible designs. They only bleed off a portion of gas and are terribly inefficient. You want to control gas at the port or gas block. This means adjustable gas (if shooting various loads) or a restricted port (If it's just military spec ammo).

Here is my advice:
Avoid pinning the Suppressor (Just buy a SBA3 and put it on a pistol lower)
Buy a Criterion 10.5" with Matched Bolt
Buy a DSA Sand Cut Carrier
Buy a Thick walled billet upper (With forward assist)
Buy a SLR Set Screw Adjustable Gas Block (If you go fixed gas and find out you need a less gas, it's too late if you go the pinned suppressor route)
Midwest SP Rail (12-15", this will allow the suppressor to ride inside the rail and will limit rail deflection if the rail takes a hit or drop.

Have the Upper Lapped, barrel bedded, and make sure the suppressor is not screwed on with more than 20FT# before pinning.

Click to expand...

lilgibby said:

Thank you, I'm pretty well set on doing this as a compact rifle build. I have a pistol with a brace and its just not the same to me. I can't seem to get the length of pull quite right ( i run my sticks all tge way out) and its just not as aesthetically pleasing to me. I will keep all that in mind, as I was leaning towards DI anyway. What does the billet upper offer over a forged as far as benefits?

Click to expand...

clandestine said:

1) AR Piston guns are louder when suppressed
2) Gas Piston AR's unlock faster than a D.I., this means extraction is more difficult.
3) Adjustable Gas/Carrier Keys and Carriers are terrible designs. They only bleed off a portion of gas and are terribly inefficient. You want to control gas at the port or gas block. This means adjustable gas (if shooting various loads) or a restricted port (If it's just military spec ammo).

Here is my advice:
Avoid pinning the Suppressor (Just buy a SBA3 and put it on a pistol lower)
Buy a Criterion 10.5" with Matched Bolt
Buy a DSA Sand Cut Carrier
Buy a Thick walled billet upper (With forward assist)
Buy a SLR Set Screw Adjustable Gas Block (If you go fixed gas and find out you need a less gas, it's too late if you go the pinned suppressor route)
Midwest SP Rail (12-15", this will allow the suppressor to ride inside the rail and will limit rail deflection if the rail takes a hit or drop.

Have the Upper Lapped, barrel bedded, and make sure the suppressor is not screwed on with more than 20FT# before pinning.

Click to expand...

J.T said:

Chad would this parts list work well for a 300Black also? I wouldn't be pinning the can and it would be a pistol build

Click to expand...

clandestine said:

Yes, but I'm not sure if Criterion makes a .300 barrel. If they do I'm sure it will shoot well.

Just make sure it's pistol gas if they make a barrel.

For .300 the Tubb Flatwire .300 spring is my favorite for .300's that shoot subs, supers, handloads, suppressed, and unsuppressed.

Click to expand...

J.T said:

Roger that. I'll be in touch once all parts are acquired

Click to expand...