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Receiver Extension Tube

Receiver Extension Tube

D.S. Arms · Buffer Tubes & Springs

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$25.49at Brownells

Out of stock checked Nov 10, 2026

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Brownells $25.49checked Nov 10, 2026 Out of stock Buy at Brownells

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Price history

Dashed line = out of stock. Tracking since Sep 27, 2026.

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Since Sep 27, 2026.

About this part

The Receiver Extension Tube is an AR-15 buffer part from D.S. Arms. One store lists it, Brownells at $25.49.

Specifications

Manufacturer
D.S. Arms
Platform
AR-15

From the manufacturer

Provides Six-Position Adjustment

M4-style receiver extension tube has six precision-machined notches on the underside for maximum flexibility in setting length-of-pull with adjustable buttstocks. Lets you install a mil-spec stock on a civilian carbine or refit a rifle with an A2-style fixed buttstock with an adjustable M4 stock. Outside diameter of tube is machined approximately .003" oversized for snug, rattle-free fit of stocks designed for mil-spec extensions. Lightly sand interior of stock to get just the right combination of snugness and freedom over movement. Machined from a lightweight aluminum extrusion before hardcoat anodizing with a wear-resistant matte black finish. Rifle conversion also requires a carbine action spring and buffer, available separately.


AR-15, Issue:11, Page:048
Big Book Catalog, Issue:70, Page:048

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$25.49 at Brownells
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