Luth-AR .223 Buffer Body Assembly

Manufactured by Luth-AR
Manufactured by Luth-AR
2 Reviews

In Stock

Standard orders will ship out same day if ordered by 3:30pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



Looking to build a rifle length AR-15? This .223 buffer tube assembly from Luth-AR comes with everything you need to attach an A2 or rifle length buttstock to your rifle. The A2 buffer tube is made from aluminum while the spring is made from stainless steel. When paired with a rifle length gas system, this buffer assembly will provide exceptional reliability and durability. It simply threads into any Mil-Spec AR-15 lower receiver and is compatible with the Luth-AR MBA-1/2  or other rifle buttstocks compatible with A2 receiver extensions. The spring and buffer weight are tuned specifically to .223 and 5.56 caliber rounds and will not work in .308 rifles.

  • A2 rifle length buttstock aluminum extension tube
  • Standard .223/5.56 rifle stainless steel buffer spring
  • Standard .223/5.56 buffer weight

The Luth-AR company was founded by the same man who founded the DPMS and Panther Arms firearms companies. Randy Luth started as a machinist and built his way up to leading some of the most recognizable and respected companies in the firearms industry. The Luth company now owns seven patents for high quality AR-15/.308 components and accessories that are built for the competition shooter, hunter, and gun enthusiast.
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Buffer5.88 AR-15 Rifle - Standard 5.20 oz
TypeStock Hardware Kit

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

2 reviews

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A must have

by -

A must have if you are doing a rifle length stock. Built very well

worked good for my build

by -

Nicely made, perfect fit, quieter than my carbine assy.