Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H1 - Black

Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H1 - Black - Buffer Tube Assembly for AR-15 - view 1
Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H1 - Black - Buffer Tube Assembly for AR-15 - view 2
Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H1 - Black - Buffer Tube Assembly for AR-15 - view 3
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Geissele

Overview

The Geissele Automatics Premium Mil-Spec Buffer Tube Assembly is a comprehensive parts kit designed to ensure reliable function and performance in your AR-15 build. Featuring a Mil-Spec buffer tube, this assembly provides the necessary support and compatibility for a wide range of stocks and is finished in a sleek black color for a cohesive look. This buffer tube assembly is commonly used in builds featuring a carbine gas system and chambered for 5.56 NATO, making it a solid choice for builders aiming for optimal reliability and operation.

Specifications

MPN08-163B
Buffer Tube SpecMil-Spec
AssemblyParts Kit
ColorBlack

Available Merchants(6)

Prices checked

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Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
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In Stock
$114.99
Brownells logo
Brownells
Free shipping
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In Stock
$133.00
Primary Arms logo
Primary Arms
Free shipping
Shipping Speed
In Stock
$133.00
Palmetto State Armory logo
Palmetto State Armory
Free shipping
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In Stock
$133.99
BattleHawk Armory logo
BattleHawk Armory
Shipping varies
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Out of Stock
$117.00
Optics Planet logo
Optics Planet
Free shipping
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Out of Stock
$133.00

October 2026 on GunPartPicker

Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H1 - Black ranked #15 of the 107 buffer tube kits builders added on GunPartPicker in October 2026, behind the Strike Industries AR Mil-Spec Buffer Housing for Mil-Spec Buffers, Red - SI-AR-BH-MIL-RED, with about 2% of all buffer tube kits added to builds. Down from #9 in September. Builds with this buffer tube assembly are mostly chambered in 5.56 NATO (78%, then .223 Wylde 13%), split between mid-length (57%) and carbine-length (29%) gas systems, and nearly all AR-15.

Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 4 of the 6 retailers we track have it in stock. Buying today, the lowest price is $114.99 at Ammunition Depot, which matches the best price we saw in October.

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Frequently Built With

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

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

100%
AR-15100%

Caliber

78.3%
5.56 NATO78.3%
.223 Wylde13%
300 Blackout4.3%
6.5 Creedmoor4.3%

Gas System

57.1%
Mid-Length57.1%
Carbine28.6%
Intermediate4.8%
Pistol4.8%
Rifle4.8%

Builds Featuring This Part

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Builds in the community that include the Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H1 - Black

BuildPartsTotal
PDW 16" 5.56 build
PDW 16" 5.56
27$2121.30

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