When should I use a heavy buffer in my AR-15?

Heavy buffers (H1, H2, H3) are ideal for suppressed rifles, short barrels, or over-gassed systems. They reduce recoil and improve cycling consistency.

Are all AR-15 buffers mil-spec compatible?

Yes. All AR-15 buffers offered by Mounts Plus are designed to fit mil-spec AR-15 lower receivers and buffer tubes unless otherwise noted.

AR-15 Buffers – Carbine, Rifle & Heavy Buffer Systems

Name: AR-15 Buffer Systems – Carbine, Rifle & Heavy Buffers
Brand: Mounts Plus
SKU: AR15-BUFFER-CAT
Availability: InStock
Rating: 4.8 (46 reviews)

Carbine Buffer

AR-15 Buffer Weights

**Buffer Technologies AR-15 Recoil Buffer** $12.99

**ATI AR15 Recoil Buffer - Standard 3oz Carbine Buffer** $14.95

**Deltac AR-15 Tungsten Recoil Buffer Weights (3-Pack)** $35.95

**Deltac AR-15 Mil Spec Buffer Tube Kit with Dual Loop Sling End Plate** $79.92

**Deltac AR15 Buffer - Standard 3oz Carbine Buffer** $10.00

**DPM AR-15 Recoil Reduction System - .223/5.56 Caliber MIL-SPEC Recoil Buffer** $298.76

**AIM SPORTS AR15 Carbine Buffer - 3 oz** $12.95

**DPM BUFFER AR-15/M-16 5.56/2.23 & PCC 9mm Captured Version** $154.13

**DPM Recoil Reduction System for AR 9mm PCC Closed Bolt Carrier** $298.76

**DPM BUFFER AR-15/ M-16 / AR-10 Captured Version Heavy Ammunition .308/7.62** $154.13

**DPM AR-10 S Captured Buffer 64mm/2.5"** $154.13

**Odin Adjustable Buffer Ar15 Lite** $47.79

**Odin Adjustable Buffer AR15 Heavy** $47.79

**Nordic Components Mil-Spec Buffer Tube – 6 Position** $41.23

**Luth-AR Trpl Tungsten H3-buffer** $54.98

**Luth-AR Dbl Tungsten H2-buffer** $43.70

**Luth-AR Heavy Car Buffer Assembly** $31.01

**Luth-AR .223 Carbine Buffer Body** $15.66

**Luth-AR 9mm Carbine Buffer Body** $21.29

**Luth-AR 308 Carbine Buffer Body** $42.43

AR-15 Buffers – Carbine, Rifle & Heavy Buffer Systems for Smooth Recoil Control

Upgrade Your AR-15 Buffer System for Better Recoil, Reliability, and Cycling

Your AR-15’s buffer system is a critical component that directly affects recoil, bolt timing, and reliability. Whether you’re refining a suppressed SBR, tuning a competition rifle, or replacing a worn buffer, the right AR-15 buffer makes all the difference.

At Mounts Plus, we carry a full selection of carbine, rifle, and heavy AR-15 buffers from top brands like ATI, Deltac, AIM Sports, DPM, and Buffer Technologies. Choose from standard weights, H1/H2/H3 buffers, and recoil-reducing captured buffer systems.

🧰 Types of AR-15 Buffers We Offer

✅ Carbine Buffers

Standard 3 oz buffers for carbine-length buffer tubes
Used in most AR-15 builds with adjustable stocks
Compatible with pistol-length and mid-length gas systems

✅ Rifle Buffers

Longer, heavier buffers for fixed-stock setups
Designed for rifle-length buffer tubes
Ideal for full-length precision or hunting rifles

✅ Heavy Buffers (H1, H2, H3)

Tuned to reduce bolt speed and felt recoil
Essential for suppressed, over-gassed, or short-barreled rifles
Common in high-performance and defensive AR builds

✅ Recoil-Reducing & Captured Buffer Systems

DPM and JP SCS-style captured springs
Combine spring and buffer into one unit
Great for reducing vibration and improving consistency

📏 AR-15 Buffer Weight Reference

Buffer Type	Weight (approx.)	Best Use Case
Carbine	3.0 oz	Standard builds, 16" barrels
H1	3.8 oz	Slightly over-gassed carbines
H2	4.6 oz	Suppressed, short barrels
H3	5.4 oz	Full-auto or highly over-gassed
Rifle	5.0 oz	Rifle-length tubes and DMRs
DPM Captured	Variable	Recoil-sensitive builds

📌 Always match your buffer weight to your gas system, barrel length, and ammo type for smooth cycling.

🔩 Top Brands We Carry

DPM Systems – Captured recoil-reduction systems
ATI Outdoors – Mil-spec carbine buffers
Buffer Technologies – Enhanced recoil buffer upgrades
Deltac – Affordable carbine & tungsten buffer weights
AIM Sports, Nordic Components, Maxim Defense, and more

🧠 Why Upgrade Your AR-15 Buffer System?

Upgrading your buffer helps you:

✅ Fine-tune bolt carrier group (BCG) velocity
✅ Minimize wear and tear on your lower receiver
✅ Reduce felt recoil and muzzle rise
✅ Improve reliability when suppressed
✅ Customize performance for your specific build

🧩 Buffer Tube Compatibility Guide

Buffer Type	Requires Tube Type	Compatible Stock
Carbine	Carbine buffer tube	Adjustable stock
Rifle	Rifle-length tube	A2 fixed stock
JP / DPM	Usually carbine tube	Most AR-15 lowers

All buffers sold here are mil-spec compatible and fit standard AR-15 lower receivers.

⭐ Customer Reviews

“Switched to an H2 buffer in my suppressed 10.5” AR — night and day difference. No more over-gassing.” – 5.56Chris

“The DPM captured system runs smoother than anything I’ve tried. Recoil is almost non-existent.” – MatchMark

❓ FAQs – AR-15 Buffer Systems

Q: What’s the difference between carbine and rifle buffers?
Carbine buffers are shorter and used with collapsible stocks. Rifle buffers are longer and require a rifle-length buffer tube.

Q: When should I upgrade to a heavy buffer?
Use H1, H2, or H3 buffers if you shoot suppressed, have a short barrel, or experience excessive recoil or bolt bounce.

Q: Are your buffers mil-spec compatible?
Yes. All buffers we carry work with standard mil-spec AR-15 lowers and buffer tubes unless otherwise noted.

Q: What is a captured buffer system?
Captured buffers, like the DPM or JP SCS, combine spring and buffer into a single self-contained unit. They reduce recoil, spring noise, and improve consistency.

🛒 Shop AR-15 Buffers & Recoil Systems Now

Maximize your AR-15’s reliability and performance with the right buffer system. Whether you're dialing in a defensive carbine, building a suppressed setup, or tuning for competition, Mounts Plus has the solution.