.937 gas block

AR/M4 AR Technical Discussion
1

I have a dilemma and need some help. I have purchased a Krieger 26" varmatch barrel. the barrel at the gas block is .937. Now it comes with a gas block but I have a 15" PRl Delta forearm that I would like to continue to use. That gas block like the barrel, looks like a truck axle, is massive. It won’t clear under the forearm.

I have two choices. A shorter forearm and exposed gas block or find a low profile .937 diameter gas block. I would prefer a different gas block. Seems that there are a lot out there. Most say they are for AR15 and then they say .308. Most are adjustable. I really don’t care but if I am going to purchase a $100 adjustable gas block I want best.

Looking for advice. Right now I am looking at this one but I know nothing about them. Wilson Combat Low Profile Adjustable Gas Block

2

Syrac Ordnance Gas Block

Don’t get wrapped up to badly in the sizing nomenclature. There’s no convention for identifying sizes that everyone follows. The gas block I linked to above will fit your barrel perfectly as will any other number of high quality gas blocks.

3

http://www.syracordnance.com/products/gen-ii-936-adjustable-low-pro-solid-gas-block-melonite-finish

They also have the set screw version.

4

on order

thanks everyone

5

SLR block is also a good choice for an adjustable block and ever so slightly lower than the Syrac at 1.55" tall : http://slrrifleworks.com/index.php?route=product/product&path=57_103_105&product_id=127

Troy is the smallest (though non-adjustable) set-screw block in 0.936 that I’m aware: https://troyind.com/products/gas-block-936

They don’t list the dimensions, but I have one here and it’s 1.38" tall. A VLTOR 0.750 set screw block is 1.34" tall by comparison.

6

http://yhm.net/bull-barrel-gas-block.html