Description
Building your own AR-10 is one of the more satisfying projects a gun owner can take on, and this TacFire kit hands you the parts pile that gets you most of the way there. It's a Sports South exclusive built around the DPMS (LR-308) pattern, chambered in .308 Winchester, and it covers everything from the barrel to the buttstock so you're not chasing down a dozen separate components. All you supply is a stripped DPMS-pattern upper and lower receiver, and you've got a rifle taking shape on the bench.
What Comes in the SSRK308LPK18BN Kit
The centerpiece is an 18-inch .308 barrel finished in black nitride, a treatment that fights corrosion and cuts down on wear without adding bulk. That 18-inch length is a sweet spot for the cartridge, giving you solid velocity for hunting or range work while keeping the rifle handier than a full 20-inch setup. Riding over the barrel is a 15-inch low-profile slim M-LOK handguard that gives you plenty of real estate for a bipod, light, sling mounts, or a forward grip. The muzzle is threaded 5/8×24, the standard .308 pitch, so mounting a brake, flash hider, or suppressor is straightforward.
Getting the TacFire AR-10 Kit Running
Beyond the barrel and rail, the kit rounds out with an AR-10 DPMS-profile bolt carrier group, an aluminum charging handle with a steel latch, an AR-10 dust cover, a forward assist, and a complete lower parts kit (minus the grip, since an AR-15 enhanced pistol grip is included separately). You also get the Mil-Spec buffer tube, a 3.8 oz heavy buffer with spring, castle nut, end plate, and a Mil-Spec M4-style six-position stock with a QD sling swivel and butt pad.
One thing worth knowing up front: AR-10 parts aren't standardized the way AR-15 parts are. This kit follows the DPMS pattern, so your stripped upper and lower both need to be DPMS-pattern to fit and function correctly. Match that up and you've got a capable, customizable .308 platform ready for hunting, long-range shooting, or a do-it-all build.
Key Specifications
- Manufacturer: TacFire
- Manufacturer Part Number: SSRK308LPK18BN
- Model: AR Build Kit
- UPC: 745559515260
- Caliber: .308 Winchester / 7.62x51mm
- Platform: AR-10 (DPMS / LR-308 Pattern)
- Action: Semi-Auto
- Barrel Length: 18 inches
- Barrel Finish: Black Nitride
- Muzzle Thread: 5/8"x24
- Handguard: 15" Low Profile Slim M-LOK
- Upper Receiver: DPMS Low Profile Stripped, Gen 3
- Buffer: 3.8 oz Heavy Buffer with Spring
- Stock: Mil-Spec M4 Style 6-Position with QD Swivel
- Material: Aluminum
What’s Included
- 18" .308 Winchester nitride barrel
- NIB (nickel boron) barrel extension
- 15" .308 low profile slim M-LOK handguard
- .308 DPMS low profile stripped upper receiver (Gen 3)
- AR-10/.308 aluminum charging handle with steel latch
- AR-10 dust cover
- AR-15 forward assist
- AR-15 standard receiver end plate
- Mil-Spec/commercial steel castle nut
- Mil-Spec aluminum buffer tube
- AR-10 3.8 oz heavy buffer with tube spring
- AR-15 Mil-Spec M4 style 6-position stock with QD sling swivel and butt pad
- .308 lower parts kit (no grip)
- AR-15 enhanced pistol grip
- AR-10 DPMS profile bolt carrier group
Frequently Asked Questions
What do I need to add to complete this TacFire AR-10 build kit?
You'll need a stripped DPMS-pattern .308 upper receiver and a stripped DPMS-pattern lower receiver to finish the build. The kit covers the barrel, bolt carrier group, handguard, charging handle, buffer system, stock, and lower parts kit. Once you've got your two receivers matched to the DPMS pattern, you have essentially everything else to assemble a working rifle.
Is this kit DPMS or Armalite pattern?
This is a DPMS-pattern (LR-308) kit, which is the more common of the two AR-10 patterns on the market today. DPMS and Armalite parts are not interchangeable, so your receivers need to be DPMS-pattern to fit and headspace correctly. If you're buying a stripped upper and lower to pair with this kit, confirm they're both DPMS before you order.
What muzzle devices will fit the 18-inch barrel?
The barrel comes threaded 5/8"x24, which is the standard thread pitch for .308 and 7.62 platforms. That means you've got a huge selection of compatible brakes, flash hiders, and suppressor mounts to choose from. Just match the device to that thread pitch and you're good to go.
What's the benefit of the black nitride barrel finish?
Black nitride is a surface treatment that hardens the metal and resists corrosion and wear better than a plain finish. It also holds up well against the heat and fouling that come with running .308. The result is a durable barrel that's easy to wipe down and clean after a range session.





Reviews
There are no reviews yet.