Timber Creek Outdoors Buffer Tube Kit — Red Anodized, AR-15 Mil-Spec
Model: ARBTKR • UPC: 816397027755 • Platform: AR-15 (Mil-Spec) • Finish/Color: Red Anodized • Category: Buffer Tube / Receiver Extension Kit
Add style and strength to your next build with the Timber Creek Outdoors Buffer Tube Kit (ARBTKR). Precision-machined to mil-spec dimensions and finished in a striking red anodize, this receiver extension kit delivers the fit, durability, and color-matched aesthetics that discerning AR-15 builders expect. Whether you’re refreshing a well-loved carbine or completing a brand-new setup, Timber Creek’s attention to detail ensures smooth cycling, secure stock mounting, and a clean, cohesive look.
Why Choose the Timber Creek Buffer Tube Kit (Red)
Mil-Spec Fit & Function: Works seamlessly with mil-spec AR-15 lower receivers and most mil-spec carbine stocks for reliable, repeatable lockup.
Durable Red Anodize: The hard anodized finish resists corrosion and wear while delivering a bold, custom appearance that stands out on the line.
Precision-Machined Aluminum: Lightweight yet rugged receiver extension maintains correct internal geometry for consistent buffer travel and smooth operation.
Cohesive Build Aesthetic: Pair with other Timber Creek Enforcer/color-series parts for a unified, professional color theme.
Builder-Friendly: Straightforward installation with common armorer tools; ideal for upgrades or new carbine builds.
What’s Typically Included
(Contents can vary by batch/retailer; always verify your product photos/specs for this exact ARBTKR SKU.)
Carbine-Length Mil-Spec Buffer Tube / Receiver Extension (Red Anodized)
Castle Nut (Color-Matched or Black, per run)
End Plate / QD End Plate (varies by kit configuration)
Some kits may also include: carbine buffer and carbine action spring. Check the live listing to confirm.
Key Features & Specs
Compatibility: AR-15 pattern lowers; mil-spec carbine stocks (not commercial-spec)
Material: Precision-machined aluminum receiver extension; steel castle nut/end plate
Finish: Red anodized receiver extension; hardware finish varies by production
Length: Carbine (for collapsible stocks)
Weight: Lightweight design (varies by included hardware)
Model / UPC: ARBTKR / 816397027755
Fit Note: This is AR-15 mil-spec. It is not designed for AR-10/LR-308 commercial-spec tubes or fixed rifle-length stocks.
Real-World Benefits
Consistent Cycling: Correct internal dimensions support smooth buffer travel and reliable bolt return.
Rock-Solid Stock Interface: Proper tube diameter ensures tight, chatter-free stock adjustment.
Weather-Tough: Anodized aluminum shrugs off sweat, rain, and range abrasion for long-term durability.
Custom Look, Pro Performance: Match the rest of your red-accent build without sacrificing function.
Ideal Use Cases
Competition & Range Builds: Add visibility and flair while keeping the action ultra-reliable.
Training Carbines: Mil-spec geometry and quality hardware for heavy practice schedules.
Custom Themed Rifles: Combine with red controls, handguards, and small parts for a cohesive style.
Installation Tips
Unload & Clear: Verify the firearm is unloaded before beginning work.
Tools: Armorer’s wrench, torque wrench, roll-pin punches, and a bench block are recommended.
Indexing: Align the buffer retainer and end plate correctly; ensure the takedown detent spring seats under the end plate.
Torque: Tighten the castle nut to mil-spec torque (commonly 38–40 ft-lb) and stake if required.
Lubrication: Lightly lube the internal tube surface before installing the spring and buffer.
Function Check: Confirm stock adjustment, safety, and charging operation prior to live fire.
Compliance & Compatibility
Platform: Designed for AR-15 mil-spec carbine setups; not for commercial-diameter stocks.
Local Laws: Buffer tubes are generally unrestricted, but always confirm state and local regulations for rifle configurations and features.
Finish Matching: Anodize shades may vary slightly between lots; Timber Creek aims for consistent color across the series.
Frequently Asked Questions
Q: Will this fit a commercial-spec carbine stock?
A: No. This tube is mil-spec diameter. Use a mil-spec stock for proper fit.
Q: Is the buffer and spring included?
A: Contents may vary. Some kits include the buffer and spring; others supply the tube/castle nut/end plate only. Check the listing for the exact inventory.
Q: Can I use this on an AR-10/LR-308?
A: It’s designed for AR-15. Many AR-10s use different recoil systems; consult your rifle’s spec.
Q: Do I need to stake the castle nut?
A: For duty or hard-use rifles, staking is recommended to prevent loosening under recoil.
Q: How durable is the red anodize?
A: Anodizing is highly durable. Minor wear on high-contact edges over time is normal and purely cosmetic.
SEO Highlights (Quick Scan)
Timber Creek Outdoors Buffer Tube Kit (ARBTKR) — Red Anodized, AR-15 mil-spec receiver extension kit
Includes buffer tube, castle nut, end plate (plus buffer/spring on some kits—verify contents)
Precision-machined aluminum, reliable cycling, cohesive color match for custom builds
Ideal for competition, range, and training carbines; pairs with Timber Creek color-series parts
Model ARBTKR, UPC 816397027755
Complete your AR-15 with a color-matched, mil-spec receiver extension that performs. The Timber Creek Outdoors Buffer Tube Kit (Red Anodized) delivers smooth cycling, secure stock fit, and head-turning style—built for the range, the match, and the long haul.
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