TacFire’s AR Build Kit Rifle .308 Win AR-10 Black Nitride Aluminum 5/8"-24 tpi (Sports South Exclusive, model SSRK308LPK18BN, UPC 745559515260) is a premium, ready-to-build parts kit designed for shooters who want a reliable, accurate, and fully featured .308 AR-10 rifle foundation. Built around a nitride-treated 18" barrel and a lightweight aluminum platform, this kit gives you the core components you need to complete a high-performance AR-10 build tailored to your style. BOSQUE Outdoors+2GrabAGun+2
Premium .308 AR-10 Build Kit – Sports South Exclusive
As a Sports South Exclusive, this TacFire AR build kit combines quality components and smart configuration in one cohesive package. It's purpose-built for the .308 Winchester cartridge in an AR-10 pattern rifle and features a durable black nitride finish, semi-auto compatible parts, and a 5/8"-24 threaded barrel ready for muzzle devices or suppressor-ready accessories. BOSQUE Outdoors+1
Ideal for:
Builders wanting a complete .308 AR-10 kit minus the receivers
Enthusiasts upgrading to a black nitride, 18" barrel platform
Shooters looking for a balanced, accurate .308 build for range, competition, or hunting
Key Features at a Glance
Caliber: .308 Winchester
Platform: AR-10 / DPMS pattern
Barrel: 18" nitride-coated barrel with NIB extension BOSQUE Outdoors+1
Thread Pattern: 5/8"-24 tpi for common .30-cal muzzle devices BOSQUE Outdoors+1
Finish: Black nitride and anodized aluminum for durability and corrosion resistance BOSQUE Outdoors+1
Handguard: 15" .308 low-profile slim M-LOK handguard
Upper: .308 DPMS low-profile stripped upper receiver (Gen 3) Palmetto State Armory+1
Stock & Buffer System: Mil-Spec M4-style 6-position stock with heavy buffer and tube spring
Bolt Carrier Group: AR-10 BCG, DPMS profile GrabAGun+1
Grip: AR-15 enhanced pistol grip included (.308 lower parts kit comes with no grip from factory; TacFire pairs it with an upgraded grip in this kit) GrabAGun+1
What’s Included in the TacFire SSRK308LPK18BN Kit
The TacFire AR Build Kit is configured to supply the core components you need for a robust .308 AR-10 build (receivers not included). Inside the kit you’ll typically find: GrabAGun+2g4gguns.com+2
.308 Winchester 18" Barrel (Nitride) with NIB extension
15" .308 Low Profile Slim M-LOK Handguard – plenty of rail estate for optics, bipods, lights, and accessories
.308 DPMS Low Profile Stripped Upper Receiver (Gen 3)
AR-10/.308 Charging Handle – aluminum body with steel latch
AR-10 Dust Cover
AR-15 Forward Assist
AR-15 Standard Receiver End Plate
Mil-Spec / Commercial Castle Nut (Steel)
Mil-Spec Buffer Tube (Aluminum)
AR-10 3.8 oz Heavy Buffer with Tube Spring – helps manage recoil and maintain reliable cycling
AR-15 Mil-Spec M4 Style 6-Position Stock with QD sling swivel and butt pad
.308 Lower Parts Kit (No Grip) paired with an AR-15 Enhanced Pistol Grip for improved control
AR-10 Bolt Carrier Group, DPMS Profile
This thoughtful combination ensures the main functional and ergonomic pieces of your .308 rifle are compatible, balanced, and ready to be matched with your chosen receivers.
Black Nitride Barrel & Aluminum Construction for Long-Term Durability
The heart of this kit is the 18" black nitride barrel, designed to offer excellent wear resistance, corrosion protection, and consistent accuracy over time. Nitride treatment creates a hard, slick surface that can handle high round counts and varied environmental conditions. BOSQUE Outdoors+1
Paired with aluminum receivers and handguard, this build kit offers: Palmetto State Armory+2BOSQUE Outdoors+2
A strong yet relatively lightweight platform
Resistance to rust and harsh weather
A sleek, modern black finish that looks at home on any range
18" Barrel & 5/8"-24 Threads for Versatile .308 Performance
The 18" barrel length strikes a solid balance between maneuverability and ballistic performance in .308 Win—long enough to maintain velocity and energy, yet compact enough to feel quick from bench, bipod, or field positions.
With a 5/8"-24 tpi thread pattern, you can easily install: BOSQUE Outdoors+2GrabAGun+2
Muzzle brakes for recoil control
Flash hiders to reduce signature
Suppressor-ready adapters where legal and applicable
This makes the kit an appealing choice for shooters who want to fine-tune recoil, muzzle rise, and noise characteristics with their preferred muzzle device.
Slim 15" M-LOK Handguard for Accessories & Control
The 15" low-profile slim M-LOK handguard offers a modern, ergonomic front end that’s ready for accessories. Its extended length gives you more reach and more mounting real estate for: BOSQUE Outdoors+1
Bipods or support accessories
Weapon lights and lasers
Sling QD mounts and handstops
Offset optics or backup sights
The slim profile is comfortable in the hand and keeps weight forward but manageable, helping with stability during sustained shooting.
Enhanced Recoil Management & Ergonomics
TacFire pairs this .308 AR-10 kit with components focused on stability and comfort: BOSQUE Outdoors+2GrabAGun+2
AR-10 3.8 oz Heavy Buffer + Tube Spring – tuned to help manage .308 recoil and support reliable cycling
Mil-Spec M4-Style 6-Position Stock – adjust length of pull quickly for different shooters, gear, or shooting positions
Enhanced Pistol Grip – improved ergonomics and control versus a basic A2-style grip
Together, these features help keep the rifle more controllable, especially during rapid strings of fire or when shooting from less-than-ideal positions.
DPMS-Profile AR-10 Bolt Carrier Group
A DPMS-profile AR-10 bolt carrier group is included to match the DPMS-style upper pattern. This ensures proper fit within the platform and supports smooth, reliable cycling with .308 ammunition when paired with quality receivers and properly tuned gas system components. BOSQUE Outdoors+2GrabAGun+2
Why Choose the TacFire SSRK308LPK18BN AR Build Kit?
This TacFire AR Build Kit stands out in the .308 AR-10 parts market because it offers: BOSQUE Outdoors+1
A cohesive parts bundle from a single manufacturer and distribution channel (Sports South Exclusive)
High-value, high-feature configuration including nitride barrel, M-LOK handguard, DPMS upper, and BCG
Versatility for target shooting, long-range work, and general-purpose .308 AR builds
Trusted TacFire branding backed by popular retailers across the firearms industry
For builders who want a long-lasting, black nitride .308 AR-10 kit with modern features and solid ergonomics, the TacFire SSRK308LPK18BN is a compelling choice.
Technical Specifications – TacFire AR Build Kit .308 Win AR-10
Brand: TacFire
Model: AR Build Kit
MPN: SSRK308LPK18BN
UPC: 745559515260 BOSQUE Outdoors+1
Caliber: .308 Winchester
Platform: AR-10 / DPMS pattern
Action Compatibility: Semi-auto
Barrel Length: 18" nitride-coated barrel with NIB extension BOSQUE Outdoors+1
Thread Pattern: 5/8"-24 tpi
Material: Aluminum (upper, handguard, buffer tube, many components)
Finish: Black nitride / black anodized
Handguard: 15" .308 low-profile slim M-LOK
Upper Receiver: .308 DPMS low profile stripped upper (Gen 3)
Stock: AR-15 Mil-Spec M4-style 6-position, with QD sling swivel and butt pad
Buffer System: AR-10 3.8 oz heavy buffer with tube spring
Bolt Carrier Group: AR-10 BCG, DPMS profile
Lower Parts Kit: .308 LPK (no grip) plus AR-15 enhanced pistol grip
Bring your next .308 AR-10 rifle project to life with a purpose-built kit that delivers the right balance of performance, durability, and modern features—straight out of the box.
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