We are offering an AR type barrel chambered for the .308 Winchester cartridges. These are available in four styles and all are completely finished drop-in type barrels. They are finish-chambered and have a DPMS-style barrel extension installed and the gas port hole drilled for a rifle-length gas system. They also are threaded 5/8″ – 24 at the muzzle. These barrels are not compatible with the Armalite or Rock River Arms rifles.
The overall length is 24″. Gas block size is .936″. The diameter in front of the barrel extension is 1.200, then .975″ diameter to the gas block and then .875″ diameter from the gas block to the muzzle. The unfluted barrel is 4.25 pounds and the fluted version is 3.90 pounds. Muzzle threads are 5/8″ – 24. To see a .pdf drawing file of this profile – Click here
All versions of this stainless steel AR-type barrel are chambered with a PTG semi-auto match reamer. They are rifled with an 11″ twist 3-groove configuration in .308 Winchester and an 8″ twist 3-groove in .260 Remington. These barrels are also hand-lapped to our internal finish standards. The section forward of the gas block section is engraved: “Lilja AR .308 Win. 11T. The barrel extensions are a DPMS type and these barrels will headspace properly with DPMS type bolts. The gas block and gas port hole are positioned for standard rifle length gas tubes.