TacFire® AR-15 H2 Heavy Buffer - 4.6 oz Recoil Mitigation Weight, Aluminum Body, High-Impact Rubber Bumper, Anodized Matte Black Finish - MAR044-H2 / 729205710407
Product Description
When running carbine-length gas systems, suppressed setups, or short-barreled rifles (SBRs), standard 3.0 oz buffers often allow the bolt carrier group to cycle too quickly. Excess gas pressure drives up cyclic speed, leading to snappy recoil, violent ejection patterns, and unnecessary wear on receiver pins and fire control components. The **TacFire® H2 AR-15 Rifle Buffer 4.6 oz (MAR044-H2 / 729205710407)** provides calibrated H2-class reciprocating mass to slow down action speed and restore reliable cycling dynamics.
Machined from durable aluminum with an anodized matte black protective finish, the MAR044-H2 buffer weighs in at a precise 4.6 ounces. The added internal weight delays bolt unlock just enough for chamber pressures to drop, smoothing out felt recoil and preventing bolt bounce during rapid strings of fire. Fitted with a resilient rubber rear bumper that cushions bottom-out shock inside your receiver extension tube, this buffer drops straight into any standard carbine-length buffer tube to give your AR-15 a flatter, smoother shooting impulse.
Designed for universal fitment in standard carbine-length buffer extension tubes, this 4.6 oz H2 buffer provides reliable cyclic tuning directly from your workspace bench.
*Armorer Bench Notes & Real-World Staging Guidance: The TacFire MAR044-H2 buffer comes pre-assembled and ready for drop-in installation. BUFFER TUBE & SYSTEM FITMENT MATRIX: Fits standard **carbine-length buffer tubes (mil-spec or commercial-spec)**. *Platform Note:* Ideal upgrade for over-gassed 5.56 NATO carbines, suppressed rifles, SBRs, or 300 AAC Blackout setups requiring H2 weight to smooth out bolt carrier velocity. Workbench Setup Steps: 1. Always verify your rifle is completely clear of live ammunition before starting maintenance. 2. Depress the rear takedown pin and pivot the upper receiver open. 3. Push down the buffer retainer pin in the lower receiver and slide out your existing buffer and spring. 4. Slide the TacFire 4.6 oz H2 buffer into your carbine spring and insert the assembly back into the buffer tube until secured behind the retainer pin. 5. Close the upper receiver, re-engage the takedown pin, and hand-cycle the charging handle to verify smooth travel before range testing.*
Key Features
- 4.6 oz Calibrated H2 Reciprocating Weight: Delivers true H2-class mass to delay bolt carrier unlock and reduce felt recoil impulse.
- Optimized for Over-Gassed & Suppressed Rifles: Tames high bolt velocities in short-barreled rifles, carbine gas setups, and suppressed firearms.
- Tough Anodized Aluminum Construction: Machined aluminum body resists impact damage, corrosion, and gun cleaning solvents.
- High-Impact Rubber Bumper Tip: Impact-absorbing rear bumper cushions bottom-out forces inside the receiver extension tube.
- Prevents Bolt Bounce: Dense internal weight distribution stops bolt bounce during rapid double-taps for enhanced cyclic reliability.
- Drop-In Carbine Tube Fitment: Fits all standard carbine-length buffer extension tubes on mil-spec and commercial lower receivers.
Product Specifications
- Brand: TacFire® (Chino, CA / Tactical Firearm Accessories)
- Model Line: Heavy Recoil Buffer Series
- MPN/SKU Code: MAR044-H2
- UPC Code Profile: 729205710407
- Platform Fitment: AR-15 Carbine-Length Buffer Extension Tubes
- Buffer Weight Rating: 4.6 Ounces (~130.4 Grams / H2 Class Mass)
- Structural Material Base: Machined Aluminum Body w/ Internal Dense Weights
- Exterior Finish Dressing: Anodized Matte Black Finish
- Bumper Material: High-Impact Density Rubber
- Full Kit Component Checklist: 1x TacFire 4.6 oz H2 Heavy Buffer Assembly
- Packaging Format Class: Factory Original Sealed Retail Packaging
- Product Type Category: Rifle Accessories / AR-15 Lower Receiver Buffer Assemblies
- Net Component Mass: ~4.6 oz (~130.4 Grams)
- Warranty Protection: Backed by TacFire Limited Warranty
