At the time of our 6.5 Grendel barrel introduction (January 2014) we are making these available in four contours. These are the AR740 and AR 24 contours shown above as standards for the 204’s and .223’s and in addition we are also stocking a mid-length gas system contour; our 19″ long 319 contours. To see drawings of these contours click on the designation: AR740,AR24,319. The 319, 740, and AR 24 profiles are also available in a fluted version. All 6.5 Grendel barrels are threaded at the muzzle with a 5/8″-24 thread – (although the linked drawings above may show 1/2-28). Weight of AR319 is 2.47 pounds. 

The 6.5 Grendel barrels are headspaced using a Maxim Firearms bolt. Headspace may not be correct with our barrel using an Alexander Arms or LBC bolt.

Barrel extensions are an M4 type.

We also keep fluted version of these in stock. There are five flutes on the front section, leaving a missing flute where the barrel is engraved and six flutes on the back section. Fluting adds $130 to the price.

We also have for sale a 6.5 Grendel bolt made by Maxim Firearms. This bolt is a perfect match for our 6.5 Grendel barrels.

Machined from certified 9310 AQ (aircraft quality) steel

Matte black; phosphate finish

Completely assembled with extractor, rings, and ejector, ready for installation into your bolt carrier

Also referred to as “Type II” bolt which has a .136″ bolt face depth