Colt

Colt Carbine H3 Heavy Buffer

Colt Carbine H3 Heavy Buffer - Buffer for AR-15 - view 1
Buy Now

Colt

Overview

The Colt Carbine H3 Heavy Buffer is designed specifically for carbine-length gas systems, providing a heavier weight to enhance the cycling of the action. This H weight buffer helps mitigate recoil and reduce felt muzzle rise, which can improve overall control during rapid fire. It's commonly found in builds focused on tactical applications or where additional stability is desired.

Specifications

MPNSP400032
Buffer WeightH
TypeCarbine

Available Merchants(1)

Prices checked

Stock Alert

Log in to get notified when this product is back in stock.

Brownells logo
Brownells
Free shipping over $99
Shipping Speed
Out of Stock
$60

Build history on GunPartPicker

Builders on GunPartPicker first added the Colt Carbine H3 Heavy Buffer to a build in May 2026.

It was out of stock everywhere we track for all of August 2026, and today the one retailer we track is out of stock. Listed prices start at $59.99 at Brownells for when it comes back.

Trending buffers →

Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers

Not sure which buffer to pick?

We ranked every buffer by how often it shows up in real builds on GunPartPicker.

Read the guide: AR-15 Buffer Guide

Check it against the live catalog:

Review this product

Share your thoughts with other customers

Be the first to review

No reviews yet. Be the first to review this product!