Spikes Buffer Tube 6 Position Mil-Spec Black Hardcoat Anodized Aluminum SLA500R

Spike’s Tactical 6-Position Mil-Spec Buffer Tube – Black Hardcoat Anodized Aluminum – SLA500R, UPC 855319005204 Finish your AR-15 build the right way with the Spike’s Tactical Buffer Tube 6 Position Mil-Spec – SLA500R. This AR-15 carbine receiver extension is precision-machined from 7075-T6 aluminum, finished in black Type III hardcoat anodizing, and features six adjustable positions with laser-engraved position markers. It’s a durable, Mil-Spec–dimensioned buffer tube designed for serious AR builders who care about reliability and fit. Primary Arms+2GrabAGun+2 Whether you’re upgrading from a commercial-spec tube or starting a premium build from scratch, this Spike’s Tactical SLA500R buffer tube delivers strength, consistency, and smooth performance in a clean, no-nonsense package. Mil-Spec 7075-T6 Aluminum – Stronger Than 6061 At the heart of the SLA500R is its 7075-T6 aluminum construction—significantly stronger and more durable than common 6061 tubes. GrabAGun+2Classic Firearms+2 Key construction advantages: 7075-T6 aluminum for superior tensile strength and impact resistance Precision-machined from a single piece for maximum rigidity and consistency OpticsPlanet+1 Built to true Mil-Spec diameter (approx. 1.148" OD) for proper fit with Mil-Spec carbine stocks Hinterland Outfitters+1 If you’re running a duty rifle, defensive carbine, or high-round-count training gun, a 7075-T6 Mil-Spec buffer tube is one of the smartest reliability upgrades you can make. Type III Black Hardcoat Anodized with Dry Film Lube Spike’s Tactical finishes the SLA500R with a Type III black hardcoat anodized surface and a dry film lubricant on the interior. Primary Arms+2GrabAGun+2 Why that matters: Hardcoat anodizing improves wear resistance and corrosion protection over standard anodizing Matte black finish matches most AR receivers and gives a low-glare, professional look Dry film lube inside the tube reduces friction between the buffer and receiver extension, promoting smoother cycling and less wear than bare aluminum Primary Arms+2OpticsPlanet+2 You’ll notice the difference when you run the action—buffer movement feels slick and consistent, even on new builds. 6-Position Carbine Receiver Extension – Adjustable & Compatible This Spike’s Tactical buffer tube is a 6-position carbine receiver extension, giving you a wide range of length-of-pull adjustments to fit different shooters, gear, and shooting positions. Primary Arms+2GrabAGun+2 Highlights: Six adjustment positions for dialing in the perfect stock length Laser-engraved position markers on the top of the tube for quick, repeatable stock settings Palmetto State Armory+2GrabAGun+2 Mil-Spec diameter – compatible with Mil-Spec carbine stocks and standard AR-15 end plates and castle nuts (not included) GrabAGun+2Cheaper Than Dirt+2 If you’re moving from a commercial-spec tube, this upgrade opens the door to a wider range of Mil-Spec carbine stocks and ensures a tight, wobble-free fit. Optimized Dimensions & Lightweight Design The SLA500R buffer tube is built to carbine-length specs: Length: approx. 7.25" Primary Arms+2SDS Guns+2 Weight: approx. 3.6 oz Primary Arms+2OpticsPlanet+2 Diameter: ~1.14–1.148" Mil-Spec OD Hinterland Outfitters+1 That keeps your AR-15 carbine or AR-pattern rifle lightweight and well-balanced, while still giving you full adjustability and durability for hard use. Ideal for AR-15 Builders, Upgrades, and Duty Carbines The Spike’s Tactical 6-Position Mil-Spec Buffer Tube SLA500R is a great choice for: New AR-15 carbine builds using Mil-Spec components Upgrading from commercial-spec or cheap OEM tubes Duty and patrol rifles where reliability and Mil-Spec dimensions matter Competition carbines and defensive rifles that demand consistent cycling and stock fit OpticsPlanet+2Cheaper Than Dirt+2 Pair it with your preferred carbine buffer, recoil spring, castle nut, and end plate (sold separately or in kits) and you’ve got a solid foundation for any serious AR build. Made in the USA & Backed by Spike’s Tactical Reputation Spike’s Tactical is known for American-made, Mil-Spec AR components, and this buffer tube is no exception. Multiple retailers and Spike’s itself list the SLA500R as USA-made and engineered to meet or exceed Mil-Spec receiver extension standards. spikestactical.com+2OpticsPlanet+2 That means: Consistent quality and tolerances A component trusted by builders, armorers, and enthusiasts Excellent long-term durability in real-world use Key Features & Specifications – Spike’s Buffer Tube 6 Position Mil-Spec SLA500R Manufacturer: Spike’s Tactical spikestactical.com+1 Model / Part Number: SLA500R spikestactical.com+2Classic Firearms+2 UPC: 855319005204 Classic Firearms+2Hinterland Outfitters+2 Type: AR-15 Mil-Spec carbine buffer tube / receiver extension Positions: 6-position adjustable, laser-engraved position markers Palmetto State Armory+2GrabAGun+2 Material: 7075-T6 aluminum Primary Arms+2GrabAGun+2 Finish: Black Type III hardcoat anodized with dry film lube Primary Arms+2OpticsPlanet+2 Length: ~7.25" (carbine length) Primary Arms+2SDS Guns+2 Weight: ~3.6 oz Primary Arms+2OpticsPlanet+2 Diameter: Mil-Spec (approx. 1.148" OD) Hinterland Outfitters+1 Compatibility: AR-15 / AR-style rifles using Mil-Spec carbine stocks Standard carbine buffer and buffer spring (not included) GrabAGun+1 Country of Origin: USA OpticsPlanet+2Cheaper Than Dirt+2 If you want a true Mil-Spec 6-position buffer tube that combines 7075-T6 strength, hardcoat anodizing, dry film lube, and laser-engraved position markers, the Spike’s Buffer Tube 6 Position Mil-Spec SLA500R (UPC 855319005204) is a rock-solid choice for any serious AR-15 build or upgrade. 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