Preview: Luth-AR Modular Trigger Assembly

by
posted on May 9, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
luthar-mta.jpg

Over the past decade, several companies have released quality trigger upgrades for the AR-15 platform and the less-than-desirable mil-spec trigger that many come with from the factory. Luth-AR has joined this trend with the release of its new Modular Trigger Assembly for the AR-15 platform.

The Modular Trigger Assembly (MTA) is a one-piece trigger pack that drops in to any standard AR lower receiver and attaches with standard trigger pins. The components of the MTA, including the hammer and trigger shoe, are contained within the billet trigger housing to make it easy to drop into the lower receiver. It is made of 6061 aluminum and has a hard-coat black anodized finish.

Internal components of the MTA are precision cut with a EDM process out of A2 tool steel. The parts are also heat treated to 40-45 HRC for increased durability and longevity. These components are also black nitride finished. The MTA is single stage, and the springs are tuned to a pull weight of 3.5 lbs. with a consistent feel, thanks to the use of SST bushings.  

Also found on the trigger housing are the screw points for two set screws at the back end. These set screws provide tension on the trigger pins, which could otherwise become loose and fall out, as can be the case with other drop-in trigger groups. The MTA is compatible with .22, .223 and .30 cal. AR platforms currently on the market. The Luth-AR MTA has a suggested retail price of $150. For more information on the Luth-AR Modular Trigger Assembly visit luth-ar.com.

Latest

AO M1 SBR 01
AO M1 SBR 01

Short & Classic: Auto-Ordnance M1 Carbine SBR

While many short-barreled rifles available today are based on the latest designs, there are a few classic models in the mix, too, such as Auto-Ordnance's M1 Carbine SBR.

Review: Garmin Xero C2 Chronograph

Garmin doubled down and, hot off the introduction of its Xero C1 chronograph, introduced its next-generation Xero C2, which provides some added capabilities and features over the original.

The "Nub Sub:" KelTec's Ultra-Compact SUB-SDP

KelTec is expanding its SUB2000 line yet again with the SUB-SDP, a foldable, braced pistol that KelTec folks colloquially refer to as the "Nub Sub."

Gun of the Week: EAA Girsan Witness2311 CMXX

One of the latest options in EAA's line of 2011-style handguns is the Witness2311 CMXX, which incorporates a large, single-port compensator at the muzzle end.

The Armed Citizen® July 24, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Review: Freedom Ordnance FM-9D

New small arms with groundbreaking designs are rare in an industry where new products tend to be evolutionary rather than revolutionary. Fortunately, Freedom Ordnance marches to the beat of a different drum and invested its creative energy into developing the unique, innovative FM-9D. 

Interests



Get the best of American Rifleman delivered to your inbox.