20% off
Price history at Brownells.com
Recorded at Brownells.com since Oct 9, 2026: low $43.99 (Oct 11, 2026), high $54.99 (Oct 9, 2026). Last checked Oct 11, 2026.
From the store's product feed and AvantLink's price records; feeds can lag the store's own site.
Product Description
Features: Six position AR-15/M16/M4 receiver extension assembly Includes Mil-Spec receiver extension/buffer tube, receiver lock plate, lock-nut/castle nut, carbine buffer and carbine buffer spring Buffer tube is Mil-Spec diameter and 6061 aluminum Carbine buffer weight is 3 oz Buffer spring is 17-7 stainless steel Mfg: Brownells Fits standard AR-15/M16 lower receivers. Mil-spec diameter. Includes buffer tube, lock plate, castle nut, buffer and buffer spring.
Ar-15/M16 Mil-Spec Buffer Tube Assembly - M4 Mil-Spec Buffer Tube Assembly
$43.99
$54.99
20% Discount
You save $11.00
In Stock
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