AR Barrels: .223 and .204 Ruger Chamberings

As of January 2009 we are offering a threaded and finish chambered AR-15 type drop-in barrel. These barrels are available at this time in .223 and .204 Ruger. They are made from our 416 type stainless steel and rifled with a Special Forces-proven 8" twist in .223 and a 12" twist in .204 Ruger and like all of our barrels are hand-lapped. These barrels are threaded for and furnished with a pinned barrel extension with proper headspace and the gas port hole drilled and an 11º target crown. We are milling a narrow flat on the bottom side of the gas port section for set screws used with some types of gas blocks. This prevents marring of the .750" or .936" diameter by the set screws and helps align the gas block with the gas port hole. The front section of the barrel is engraved with "Lilja AR .223 8T" or "Lilja .204 Ruger 12T". Just add your gas block and drop into your upper receiver.

As of April 2009 we are also offering a reduced price chrome-moly version .223 AR barrel called our Patrolman. For details - Click Here

We make a variety of profiles for AR type rifles including the AR-15, AR-10 and M-4's. To see a listing of our AR type contours in a .pdf file - Click Here The AR-10 barrels are not offered as a threaded and chambered barrel at this time.

This image shows the three AR-type contours that we are keeping in-stock as a drop-in type barrel. The top contour is our AR24 contour, the middle one is our AR740 with the Wasp weight reduction section turned on the .975" diameter. The bottom contour is the M-4.

Contour Specifications:

AR24: .975" diameter from the barrel extension to the gas block section, gas block section is turned to .936" diameter for a large gas block and the forward section is .875" diameter with a finished length of 23.5" including the barrel extension. Weight is 4.16 pounds. Engraved: Lilja AR .223 8T

We have made a small run of these that are fluted. There are five flutes on the front section, leaving a missing flute where the barrel is engraved and six flutes on the back section. The weight is 3.84 pounds. The price is $580 or $515 with the quantity pricing.

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AR740: .975" diameter in front of the barrel extension with the Wasp section turned to a diameter of .750" and then tapering back up to .975" diameter at the gas block. The gas block section is turned to .750" and from the gas block to the muzzle the diameter is .740". The barrel length is 20" including the barrel extension. The muzzle end is threaded .500" x 28 TPI (threading is not shown in this image). Weight is 2.60 pounds. Engraved: Lilja AR .223 8T

M-4: .975" diameter for 2" then a radius down to .850" diameter to the .750" diameter gas block section. From the gas block to the muzzle the diameter is .725". Barrel length is 17" including the barrel extension and the M-4 barrels are furnished with a .500" x 28 TPI x .600" long threaded muzzle. Weight is 2.18 pounds. Engraved: Lilja M4 .223 8T

Image of our threaded .500" x 28 TPI muzzle end of the M4 .223 barrels.

We've been asked a few times if our barrel extensions are the rifle type or the M-4 type. Our AR barrels all use the AR type extensions and on the M4's we are using the M4 style extension. There have been times that the M4 extensions have not been available and we substituted AR types on M4 barrels. The M-4 barrels function just fine with the rifle type extension. Here's a link to an online discussion on the subject: http://www.m4carbine.net/showthread.php?t=193 from www.m4carbine.net.

Enlargement of engraved section

Price as of January 2010 is $450 or five for $400 each (contours can be mixed)

Short Barreled Rifles (SBR)

We've been asked about making AR type barrels shorter than 16" for SBR's. The short answer is no, we won't make sub-16" long barrels. The ATF views SBR's similar to supressors and a $200 tax is paid on the AR lower receiver. The lower is registered with ATF and a barrel manufacturer would need a copy of the owner's paper work on the lower to make a SBR barrel. We don't want to go through the trouble involved in this niche market and will not make barrels shorter than 16".