Question about shooting a .308 AR suppressed?

[palmettomoon]

I noticed the BC was dinging the receiver extension (rifle tube) so I'm going to swap out the spring for an extra power and use a rifle buffer instead of the heavy short 308 carbine buffer. I was getting some FTEs and rarely a light strike shooting a Heads Down Arcadius.

A 5.3 ounce rifle buffer should be a bit better than the 3.8oz buffer, no? Using an Omega 300. Ejection is in the right arc when it works. I'm taking a mixture of buffer weights and springs to the range to see if anything works better than the 3 wire coiled Geissele Super 42 spring and rifle buffer combo.

Am I forgetting something? Not used to shooting a semi rifle suppressed, mostly bolt guns.

 

[opps]

Almost all AR10 platforms are over gassed. I would add an adjustable gas block. Especially if running suppressed. Makes a world of difference.
Plus a new one: Link

 

[Allsmiles]

Adjustable gas block for AR10's work good if done correctly. Tune it to cycle with the cheapest ammo you can find and then add a little more gas for reliability (unsuppressed). Also know that the mag you use for AR10 can make a difference. Metal mags seem to have less resistance drag than PMAGs on the BCG so tune with what you are going to use. If you are going to start swapping buffers and springs, only do 1 at a time to help eliminate what is causing any failures. Also, only fire a single round each time to check for locked back BCG. Failing to lock back on single round will give you grief later when it gets dirty and hot.

 

[palmettomoon]

Almost all AR10 platforms are over gassed. I would add an adjustable gas block. Especially if running suppressed. Makes a world of difference.
Plus a new one: Link

Nice block. A little spendy but likely worth it since no tool is needed.

 

[Allsmiles]

Nice block. A little spendy but likely worth it since no tool is needed.

$200 for block, $16 for tube and then add tax and shipping. Nice, but a pricey option. If you go with an adjustable gas block, just make sure it is steel.

 

[opps]

Superlative Arms bleed off

 

[palmettomoon]

Almost all AR10 platforms are over gassed. I would add an adjustable gas block. Especially if running suppressed. Makes a world of difference.
Plus a new one: Link

Finally got around to installing a Riflespeed adjustable gas block. Had to settle for a cheapo handguard but it seems to be working okay. Function with suppressor is 100% now on setting 1. Has 11 more to fully open. Accuracy seems much improved.

 

[opps]

I have looked at those. Most of my handguard’s are longer. Easy to adjust? Simple twist?

 

[palmettomoon]

I have looked at those. Most of my handguard’s are longer. Easy to adjust? Simple twist?

Stupid easy. Comes with two plungers. Worth a little extra to not have to carry tools.

 

[palmettomoon]

Opened up to 4 for NATO loads unsuppressed.