Angstadt Arms AR-15 Carbine Buffer Kit - 5.4 oz, 9mm Luger, Standard with Spacer
Angstadt Arms
The Angstadt Arms Enhanced AR-9 PCC Trigger is purpose-built for 9mm blowback carbines—a precision fire control group engineered to solve the reliability problems that plague budget PCC triggers. If you've run a standard mil-spec trigger in a 9mm AR-9 and felt hammer reset issues, light primer strikes, or that gritty creep, this trigger addresses those pain points head-on with a design that understands the specific demands of 9mm blowback operation.
The core of this trigger group is machined from mil-spec AISI8620 investment casting, then honed and polished to eliminate the grit that undermines performance. A durable Nickel Teflon coating seals the deal—it resists corrosion and won't degrade over time. The 5.5–6 lb pull weight hits the US Military minimum while staying light enough for fast, accurate follow-ups. That full-power hammer spring ensures consistent ignition even with hard primers, while centerless-ground and hardened pins prevent breakage under the repeated shock of blowback cycling. The 1070 steel disconnector is fine-blanked and ground for reliable reset every single time.
Angstadt built this for 9mm PCC shooters, but it plays well with standard 5.56 AR platforms too. Drop it into MDP-9, UDP-9, 0940/1045 receivers or any 9mm AR-15, and you'll notice the difference the first trigger pull. For shooters who demand reliability without the typical aftermarket PCC trigger headaches, this is a smart upgrade.
| Trigger Pull Weight | 5.5–6 lbs |
| Material (Trigger/Hammer) | AISI8620 investment casting |
| Disconnector Material | 1070 steel |
| Finish | Nickel Teflon |
| Weight | 0.54 lbs |
| Dimensions | 5 × 4 × 1 in |
| Compatibility | MDP-9, UDP-9, 0940/1045 receivers, 9mm AR-15, standard 5.56 AR-15/M4 |
Yes. The Enhanced AR-9 PCC Trigger is optimized for 9mm blowback carbines and is compatible with MDP-9, UDP-9, and 0940/1045 receivers, as well as 9mm AR-15 platforms.
Yes. While engineered for 9mm PCCs, this trigger is also compatible with standard 5.56 AR-15/M4 rifles.
The trigger pull is set to 5.5–6 lbs, meeting US Military minimum specs while remaining responsive enough for fast, accurate shooting.
Many aftermarket PCC triggers suffer from hammer reset failures, light primer strikes, inconsistent bolt carrier engagement, and runaway fire. The Enhanced AR-9 PCC Trigger eliminates these issues through precision machining, hardened components, and a design tuned specifically for 9mm blowback dynamics. The full-power hammer spring ensures reliable ignition, and the fine-blanked disconnector delivers consistent reset every time.