Tacfire 10.5″ unassembled 5.56 nato pistol build kit
So you want to build a 5.56 AR pistol without piecing parts together from five different brands. This kit gets you there. It’s Tacfire’s 10.5 inch unassembled pistol build kit. Comes with everything except a lower receiver.
This is not a complete upper assembly. Also, this is not a finished pistol. First, this kit ships unassembled. So you’re building it yourself, not just dropping on a finished upper. Next, it includes the barrel, BCG, handguard, and parts kits. Finally, you supply your own lower receiver to finish it.
Tacfire 10.5″ unassembled 5.56 nato pistol build kit
You get the core of a full build. First, a 10.5 inch parkerized barrel with an A2-style muzzle device. Next, a low-profile gas block and pistol-length gas tube. Also, a slim M-Lok free-float handguard. Then a 5.56 bolt carrier group, mil-spec charging handle, and complete lower parts kit. So this covers nearly everything. However, no lower receiver is included. You need your own.
Does this kit include a lower receiver?
No. So this is the most important thing to know before buying. The kit does not include a lower receiver. Therefore, you supply your own, through proper legal channels, to complete the build. Once you have a lower, this kit gives you everything else to finish a 5.56 pistol.
Will this work with any AR-15 lower?
Yes, in general. This kit uses standard AR-15 pattern parts. So it’s built to work with mil-spec lowers. However, always check fitment on your specific lower before final assembly. Most standard AR-15 lowers will accept this kit without issue.
Is this kit beginner friendly to assemble?
It depends on your experience. So if you’ve built an AR before, this kit is straightforward. First, you’ll fit the barrel and gas system to the upper. Next, install the handguard and BCG. Finally, mount your charging handle and function-check everything. However, if you’re new to AR builds, expect a learning curve, or get help from an experienced builder.
Who is this kit best for?
This fits home builders, range shooters, and anyone wanting a compact 5.56 pistol on their own terms. So if you already have a lower and want full control over your build, this kit delivers that. Also good for builders who want to avoid paying extra for a pre-assembled upper.
Specs Table
| Spec | Detail |
|---|---|
| Compatibility | Standard AR-15 pattern lower receiver (not included) |
| Caliber | 5.56 NATO |
| Barrel Length | 10.5″ |
| Barrel Finish | Black Parkerized |
| Muzzle Device | A2-Style, 1/2×28 thread |
| Gas System | Pistol-length, low-profile gas block |
| Handguard | Slim M-Lok Free-Float |
| Upper Receiver | 7075-T6 Billet Aluminum, stripped |
| Bolt Carrier Group | 5.56 BCG included |
| Charging Handle | Mil-Spec, included |
| Lower Receiver | NOT included |
| Assembly | Unassembled, builder finishes assembly |
| Best For | Home builds, range use, compact AR pistols |
| Price | $1110 |
| Weight | verify |
| Round Count Tested | verify |
FAQ
Does this kit come with a lower receiver? No. This kit does not include a lower receiver. You need to source your own through proper legal channels.
Is this kit pre-assembled? No. It ships unassembled. You put the upper, barrel, and handguard together yourself.
What caliber is this build kit? 5.56 NATO, with a 10.5 inch barrel.
Will this fit a standard mil-spec lower receiver? Yes, generally. This kit uses standard AR-15 pattern parts. Always verify fitment with your specific lower.
Do I need a brace or stock for this build? This kit is a pistol build kit. If you want a stabilizing brace, you’ll need to source one separately and follow current regulations for pistol-brace use.
Is this kit good for a first-time AR build? It can be, if you’re comfortable with basic tools and have some build guidance. If you’re brand new, consider help from an experienced builder.
What’s included for the gas system? A low-profile gas block and pistol-length gas tube, matched to the 10.5 inch barrel.
Find more AR build kits and 5.56 pistol parts at gunpartspalace.com.
