Colt

Colt Carbine H2 Heavy Buffer

Colt Carbine H2 Heavy Buffer - Buffer for AR-15 - view 1
Colt Carbine H2 Heavy Buffer - Buffer for AR-15 - view 2
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Colt

Overview

The Colt Carbine H2 Heavy Buffer is designed specifically for carbine-length gas systems, providing reliable cycling and improved recoil management. Its H2 weight helps to mitigate the harshness of the bolt carrier group’s movement, allowing for smoother operation during firing. This buffer is commonly found in builds utilizing the 5.56 NATO caliber, making it a suitable choice for builders looking to enhance performance in their carbine platform.

Specifications

MPNSP65068
TypeCarbine
Buffer WeightH

Available Merchants(1)

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$44.99
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Build history on GunPartPicker

Builders have added the Colt Carbine H2 Heavy Buffer to their builds on GunPartPicker. Since April 2026, it ranks #100 of the 210 buffers builders have added. Builds with this buffer are mostly chambered in 5.56 NATO (81%, then .223 Wylde 13%), split between carbine-length (55%) and mid-length (36%) gas systems, and nearly all AR-15.

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Frequently Built With

The part most often added in each category by the builds that include this one

Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom

Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom

Lower Receiver$155 · out of stockin 30% of them
Strike Industries Extended Bolt Catch

Strike Industries Extended Bolt Catch

Bolt Catch$11in 28% of them
Rise Armament AR-15 Magazine Release Button - Rise Red

Rise Armament AR-15 Magazine Release Button - Rise Red

Magazine Release$8in 16% of them
Magpul MOE K2 Grip Polymer Gray

Magpul MOE K2 Grip Polymer Gray

Pistol Grip$15in 19% of them
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger

Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger

Trigger$335in 9% of them
Expo Arms AR-15 Carbine Buffer Spring - 17-7 Steel

Expo Arms AR-15 Carbine Buffer Spring - 17-7 Steel

Buffer Spring$6in 33% of them

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

100%
AR-15100%

Caliber

80.6%
5.56 NATO80.6%
.223 Wylde12.9%
.308 Win3.2%
7.62x51 NATO3.2%

Gas System

54.5%
Carbine54.5%
Mid-Length36.4%
Rifle9.1%

Builds Featuring This Part

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Builds in the community that include the Colt Carbine H2 Heavy Buffer

BuildPartsTotal
Aero Precision 14.5" build build
Aero Precision 14.5" build		17$1466.38
Carbine 14.5" 5.56 build
Carbine 14.5" 5.56		22$1031.45
for hunting hogs 14.5" build
for hunting hogs 14.5"		14$1145.95
For hunting hogs 16" build
For hunting hogs 16"		20$1505.52
Aero Precision 10.3" build build
Aero Precision 10.3" build		14$1136.93
Backup build build
Backup build		18$761.65
as my EDC rifle 16" build
as my EDC rifle 16"		26$2707.18

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