TacFire A2 .308 Stock Kit — AR-10 Platform | Polymer — Black — MAR123308 • UPC: 745557101052

Finish your AR-10 build with proven A2 ergonomics and rugged reliability. The TacFire A2 .308 Stock Kit (MAR123308) is a complete rear-end solution designed specifically for .308/AR-10 platforms, combining impact-resistant polymer construction with mil-spec receiver extension hardware to deliver stable cheek weld, positive shoulder purchase, and hassle-free installation on compatible rifles. Built for hunters, precision shooters, and tactical builders who want the familiar A2 profile scaled for the larger AR-10 family, this kit balances classic form with modern materials and fitment.

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Product Overview

The TacFire MAR123308 A2 .308 Stock Kit is engineered to complete or refresh the rear portion of AR-10 (.308 Winchester / 7.62 NATO) style rifles. The kit centers on a purpose-scaled A2-style polymer buttstock and includes a properly sized receiver extension (buffer tube), buffer spring, buffer, castle nut, end plate, and necessary installation hardware—everything needed to assemble a functional and dependable rear assembly on mil-spec compatible AR-10 lowers. The result is a classic silhouette and steady shooting platform, optimized for the increased mass and recoil impulse of .308-class cartridges.

Key Features & Benefits

• Purpose-Scaled for .308 / AR-10: Components sized and specified for the AR-10 platform to ensure correct geometry, buffer travel, and reliable cycling in .308 applications.

• Classic A2 Ergonomics: The broad contact surface and familiar A2 profile give a predictable cheek weld and improved recoil control—ideal for hunting, long-range practice, and tactical setups.

• Durable Polymer Construction: High-strength polymer stock resists impacts, moisture, and temperature extremes while keeping weight reasonable for improved carry and balance.

• Complete Kit: Includes receiver extension (buffer tube) sized for AR-10 compatibility, buffer spring, buffer weight suitable for typical .308 systems, castle nut, end plate, and fastening hardware—simplifying parts selection and reducing compatibility guesswork.

• Mil-Spec Style Interface: Engineered to interface with common AR-10 lower receivers and mil-spec-compatible extension mounting points for straightforward installation on compatible builds.

• Matte Black Finish: Low-glare, tactical appearance that integrates cleanly with black anodized or parkerized metalwork and modern chassis finishes.

What’s Included

• TacFire A2 polymer buttstock scaled for .308/AR-10

• Receiver extension (buffer tube) appropriate for AR-10 / .308 fitment

• Buffer spring and buffer weight matched for typical .308 cycling

• Castle nut and end plate

• Mounting hardware and installation fasteners
  (Contents listed are typical for MAR123308 kits; verify retailer packaging for exact included parts.)

Compatibility & Fit Notes

• Platform: Intended for AR-10 / .308 Winchester / 7.62×51 NATO style rifles and lowers built to common AR-10 dimensions. Confirm your lower’s receiver extension interface and internal dimensions before purchase.

• Buffer System: The included buffer weight and spring are selected to suit standard AR-10 gas systems; performance may vary with non-standard gas blocks, adjustable gas systems, or heavily suppressed configurations—consider consulting parts tables or a gunsmith for tuned systems.

• Lower Receiver Fit: While designed for common AR-10 patterns, variations exist between manufacturers (DPMS-pattern, Armalite-style, and other commercial designs). Verify mechanical fit and clearances for your specific lower prior to installation.

Performance & Practical Advantages

• Stability for Heavier Cartridges: The A2 geometry provides a solid contact surface to help manage the greater felt recoil of .308-class rounds versus smaller calibers.

• Repeatable Cheek Weld: The fixed A2 profile encourages consistency in sighting and follow-up shot placement—beneficial for precision work and hunting.

• Durable and Low-Maintenance: Polymer construction resists corrosion and requires minimal upkeep—clean, inspect mounting hardware periodically, and replace springs as needed.

• Straightforward Parts Consolidation: Buying a complete kit avoids mismatched components and simplifies sourcing, especially when converting or repairing AR-10 style rifles.

Installation & Maintenance (High-Level)

• Tools Recommended: Basic armorer’s tools—punch set, torque wrench or armorer’s wrench, and appropriate hand tools for securing the castle nut and end plate. Follow torque specifications provided by the lower or receiver extension manufacturer.

• Professional Assistance: If you are not experienced with AR-10 armorer procedures, seek a qualified gunsmith for installation and safety/functional checks to ensure correct buffer timing, secure mounting, and safe operation.

• Maintenance: Inspect castle nut torque and fastener security periodically; check buffer spring for wear or deformation during scheduled maintenance intervals. Wipe down polymer surfaces with a soft cloth and mild cleaner—avoid harsh solvents that could degrade polymer components.

Who Should Buy This

• Builders completing a dedicated AR-10/.308 project who want a classic A2 rear profile.

• Hunters and range shooters seeking a stable, fixed-stock solution tuned for .308 recoil impulse.

• Gunsmiths and armories stocking reliable, complete rear kits for customer builds and repairs.

• Owners replacing a damaged stock or upgrading from a worn receiver extension with correctly matched .308 parts.

Safety & Legal Notes

• No Classification Change: This kit is for stock and receiver extension replacement and does not change the firearm’s classification when installed in a compliant configuration. Always verify federal, state, and local regulations before modifying or assembling firearm components.

• Avoid DIY Headspace or Critical Fitting Tasks: This product description intentionally omits detailed armorer instructions. If you are uncertain about fitment, buffer selection, or legal classification (including state-specific restrictions), consult a qualified gunsmith or legal guidance in your jurisdiction.

Technical Specifications (High-Level)

• Model / SKU: MAR123308

• UPC: 745557101052

• Platform: AR-10 / .308 Winchester / 7.62×51 NATO

• Stock Style: A2 polymer buttstock (fixed)

• Material: High-strength polymer (stock), steel hardware and receiver extension

• Finish: Matte black

• Intended Use: Replacement or complete rear kit for AR-10 style rifles

Buying Tips & Final Considerations

• Confirm your lower receiver pattern (DPMS, Armalite, or other) and receiver extension mounting dimensions before purchase.

• If you plan to run adjustable gas systems, suppressors, or unusual buffer configurations, budget for a gunsmith consultation to choose the optimal buffer weight and spring combination.

• Compare the A2 fixed profile to adjustable stocks if you need length-of-pull adjustability for multiple shooters; A2 offers solidity and simplicity over adjustable convenience.

• Check retailer return policies and warranty details—keep original packaging and documentation in case exchanges are needed.

Summary

The TacFire A2 .308 Stock Kit (MAR123308) is a complete, thoughtfully assembled rear-end solution for AR-10 builders who prefer the classic A2 silhouette and the durability of modern polymer materials. Scaled for .308 platforms and supplied with appropriate receiver extension hardware, buffer spring, and buffer, this kit reduces compatibility guesswork and delivers a dependable, low-maintenance stock system built for hunting, precision shooting, and tactical applications.

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