TacFire® AR-15 Heavy Recoil Buffer (H2 Class Equivalent) - 4.9 oz Calibrated Weight, Heavy-Duty Aluminum Body, Rubber Impact Bumper, Anodized Matte Black Finish - MAR044 / 811261021969
Product Description
Running a short-barreled rifle, suppressor, or carbine-length gas system often introduces far more gas pressure into the action than standard 3.0 oz buffers can comfortably manage. When gas ports are over-sized or backpressure spikes during suppressed shooting, light factory carbine buffers cycle too quickly. This results in harsh felt recoil, violent casing ejection, and extra wear on your bolt carrier group and trigger pins. The **TacFire® AR-15 Heavy Buffer 4.9 oz (MAR044 / 811261021969)** solves these over-gassing issues, bringing H2-class reciprocating weight to balance out your rifle's cycling velocity.
Machined from durable aluminum with an anodized matte black protective finish, the MAR044 buffer weighs in at a solid 4.9 ounces. That extra mass delays bolt carrier unlock just long enough for chamber pressures to drop safely, smoothing out cyclic speed, reducing felt recoil, and preventing bolt bounce during rapid double-taps. Fitted with a high-impact translucent rubber bumper tip to absorb bottom-out shock inside your receiver extension, this drop-in heavy buffer is one of the easiest ways to tune your AR-15 for suppressors or short barrels.
Engineered for drop-in installation in standard carbine-length receiver extension tubes, this 4.9 oz heavy buffer provides reliable cyclic tuning and flatter shooting directly from your workbench.
*Armorer Bench Notes & Real-World Staging Guidance: The TacFire MAR044 heavy buffer arrives complete and ready to install. BUFFER TUBE & SYSTEM FITMENT MATRIX: Fits standard **carbine-length buffer tubes (mil-spec or commercial-spec)**. *Tuning Note:* Excellent upgrade for over-gassed 5.56 NATO / .223 Rem carbines, suppressed rifles, short-barreled rifles (SBRs), or 7.62x39 / .300 AAC Blackout builds that need extra reciprocating mass to slow down bolt velocity. Workbench Setup Steps: 1. Always verify your rifle is completely unloaded, magazine removed, and chamber clear before maintenance. 2. Push out the rear takedown pin and pivot the upper receiver forward. 3. Depress the buffer retainer pin inside the lower receiver and pull out your existing buffer and buffer spring. 4. Slide the TacFire 4.9 oz heavy buffer into your carbine spring and seat the assembly back into the buffer tube until locked behind the retainer pin. 5. Close the upper receiver, re-engage the takedown pin, and manually cycle the charging handle to confirm smooth travel before range testing.*
Key Features
- 4.9 oz Calibrated Reciprocating Weight: Provides heavy (H2 class) mass to delay bolt unlock, smooth out cyclic rate, and reduce felt recoil.
- Ideal for Suppressed & Short-Barreled Rifles: Tames backpressure spikes and high bolt velocities in over-gassed carbine setups and SBRs.
- Durable Aluminum Body Construction: Tough aluminum body with a matte black anodized finish resists corrosion, wear, and cleaning solvents.
- High-Impact Rubber Bumper: Translucent rubber rear bumper cushions impact forces against the back of the receiver extension tube.
- Prevents Bolt Bounce & Component Wear: Heavy internal weight distribution eliminates bolt bounce during rapid firing, protecting your fire control group.
- Drop-In Carbine Extension Fit: Direct replacement for standard 3.0 oz carbine buffers in mil-spec and commercial buffer tubes.
Product Specifications
- Brand: TacFire® (Chino, CA / Tactical Firearm Accessories)
- Model Line: Heavy Recoil Buffer Series
- MPN/SKU Code: MAR044
- UPC Code Profile: 811261021969
- Platform Fitment: AR-15 / SBR / Suppressed Carbine Buffer Tubes
- Buffer Weight Rating: 4.9 Ounces (~138.9 Grams / H2 Class Mass)
- Structural Material Base: Machined Aluminum Body w/ Dense Internal Weights
- Exterior Finish Dressing: Anodized Matte Black Finish
- Bumper Material: High-Impact Translucent Rubber
- Full Kit Component Checklist: 1x TacFire 4.9 oz Heavy Buffer Assembly
- Packaging Format Class: Factory Original Sealed Retail Packaging
- Product Type Category: Rifle Accessories / AR-15 Buffer Assemblies
- Net Component Mass: ~4.9 oz (~138.9 Grams)
- Warranty Protection: Backed by TacFire Limited Warranty
