Standard Manufacturing STD-15 drop in AR trigger.

ByHunter Elliott

Jan 31, 2021 #AR-15 trigger, #Standard Manufacturing, #STD-15 trigger

Not just target rifles can benefit from a great trigger, as your defensive carbine or AR pistol can become a bit more predictable and user friendly with a precision trigger. I was sent the Standard Manufacturing STD-15 curved drop-in trigger for consideration.

We installed it in a Barnes Precision Machine 7.5″ AR pistol chambered in 5.56×45. The factory BPM trigger was not bad, breaking at six pounds with some take up and overtravel; the STD-15 breaks about three and a half pounds with minimal take-up or overtravel. While that may not seem like much, it was quite noticeable during live and dry fire.

The STD-15 features Anodized Black Housing, Stainless Steel Bushings, and a Nitrided Tool Steel Fire Control Group. All contributing to longevity and ease of maintenance.

This trigger setup can be curved, shown in the review, or straight depending on which you prefer. Dropping in an AR trigger is quite simple, and Standard Manufacturing sends you everything you need parts wise to get the job done.

During live and dry fire, we experienced no issues with the trigger, and everything on the rifle ran as it should, indicating the trigger is built to correct mil-spec external dimensions but far smoother than any mil-spec trigger. At $125 MSRP, this is a worthy upgrade that is, in the grand scheme of things, very affordable.

By Hunter Elliott

I spent much of my youth involved with firearms and felt the call early on to the United States Marine Corps, following in my father's and his brother's footsteps. Just after high school I enlisted and felt most at home on the rifle range, where I qualified expert with several firearms and spent some time as a rifle coach to my fellow Marines. After being honorably discharged I continued teaching firearm safety, rifle and pistol marksmanship, and began teaching metallic cartridge reloading. In the late 1990s I became a life member to the National Rifle Association and worked with the Friends of the NRA. Around that time my father and I became involved with IDPA and competed together up until he passed away. I began reviewing firearms for publications in the mid 2000s and have been fortunate to make many friends in the industry. Continuing to improve my firearms skills and knowledge is a never ending journey in which we should all be committed. I am also credited as weapons master on a few independent films.

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