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Finishing an AR-10 lower takes a lot of little pieces, and losing one detent spring can stall a whole build. This TacFire kit hands you the full set of lower-receiver components for a .308 / 7.62 NATO project in a single package, so you're not scrounging through parts bins or waiting on a backordered pin. It's built around the DPMS-pattern .308 platform that most modern AR-10 style rifles follow, which is the same lineage as the LR-308 and SR-25 style guns you see at the range.
The kit is anchored by a TacFire PGAR-B pistol grip in black, along with the grip screw and lock washer to mount it up. The fire control group includes a USA-made trigger and hammer, plus their springs, pins, and a disconnector with its spring. You also get an angled trigger guard, a full bolt catch assembly, magazine catch parts, front pivot and takedown pins with detents, the safety selector and spring, and the buffer retainer with its spring. In short, it's the whole checklist for a stripped lower.
This is where AR-10 builders need to pay attention. Unlike the AR-15, the AR-10 world never got a single mil-spec standard, so parts break down mostly into DPMS and Armalite patterns. Lower parts kits like this one carry over well across DPMS, Armalite, and AR-15-style internals since many of those small components share dimensions, and builders have reported this kit dropping into DPMS .308 lowers without drama. If you're running a true factory Armalite lower, double-check your specific receiver before you start driving pins.
TacFire has been turning out tactical parts and accessories since 2010, and this kit lands squarely in the DIY builder and gunsmith camp. Assembling a lower means driving roll pins and wrangling tiny detent springs, so a punch set, a bench block, and a little patience go a long way. For anyone comfortable at the workbench, it's a straightforward way to get a .308 lower up and running.
Yes, it's built for the DPMS-pattern .308 platform, which is the most common AR-10 style layout on the market today. Builders have reported it dropping into DPMS gen 1 lowers without issue. Many of these small internal parts also carry over between DPMS, Armalite, and AR-15 style components.
The kit includes a full fire control group with a USA-made trigger and hammer, their springs and pins, plus the disconnector and its spring. You won't need to buy a separate trigger assembly to get your lower functional. If you want an aftermarket match trigger later, you can always swap it in down the road.
The AR-10 never had a single mil-spec standard, so it split into DPMS (LR-308) and Armalite patterns that aren't cross-compatible at the receiver level. This kit is geared toward the widely used DPMS-pattern builds. If you're running a factory Armalite lower, verify fit against your specific receiver before installing.
A basic punch set, a bench block, and a small hammer will cover most of the install since you'll be driving roll pins and setting detents. Needle-nose pliers help with the tiny springs, and some builders like a magazine catch or takedown pin tool to make life easier. Take your time with the detent springs, since those are the pieces most likely to launch across the room.
| UPC | 811261027541 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | LPK02B308 |
| Caliber/Gauge | .308 / 7.62 NATO |
| Model | |
| Product Type | Lower Parts Kit |
| Shipping Weight | 0.585 |
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