Tag: piston

Results of US Marine Corps Infantry Automatic Trials Released Through FOIA Request

Today, a variant of the Heckler & Koch HK416 rifle is the standard squad infantry automatic rifle (IAR) of the United States Marine Corps, as the M27. At one time in the mid-2000s, though, companies from Colt to LWRC competed against each other in a competition to [Read More…]

Adams Arms XLP Low Profile Gas Block

Adams Arms recently released their new XLP Low Profile Gas Block. It’s 30% lighter than their standard AR-15 piston kit gas block (which comes with their kits that you install on a direct impingement AR-15) and 20% lighter than the standard pinned block that comes [Read More…]

New Stag Arms Model 8 (Piston)

Stag Arms’s newest AR-15 is the piston operated Model 8 carbine. Stag have not released much information about the rifle. It looks much the same as their M4-style Model 3 carbine. I am not sure if the piston system is their own design (if you can identify, please [Read More…]

POF-USA P-308

The POF-USA P-308 is a interesting rifle. It is a gas piston operated rifle, based on the AR-10/AR-15 design and requires no lubrication. 14.5″ version They achieve this by plating the upper receiver with silicon nickel and chroming and heat treating the bolt and [Read More…]