Trinity Force MNTLU04B AR Receiver Extension Kit MIL-Spec Black Hardcoat Anodized Steel/Aluminum 11" L

Gun Parts

UPC 00812530024612

Compare prices

1 offer · 0 in stock · sorted by best price

Retailer	Price	Stock	Last checked	Deal
East Valley Tactical	$72.50	Out of stock	1h ago	Go to deal

Prices and stock are from each retailer's latest check and can change. Price Dope may earn a commission from retailer links. Disclosure

Description

Trinity Force's AR Receiver Extension Kit includes a standard buffer spring, 3oz carbine buffer, castle nut and lower receiver end plate. It is parts are constructed from aircraft grade aluminum and a high strength steel with a black hard coat anodize finish. The 11" buffer tube also features rolled threading.
This assembly kit fits on all Mil-Spec AR 15 lower receivers.

Specs

Brand	Trinity Force
Category	Parts · Parts
UPC	00812530024612
Size	Mil-Spec
Type	Extension Kit

Model	AR
Finish	Black Hardcoat Anodized
Series	Receiver Extension Kit
Material	Steel/Aluminum
Similar_items	Stock

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D.O.P.E.Price history

Lowest price across connected retailers, from every price check we've recorded.

Current best: $72.50
Low: $72.50
High: $72.50
Tracking since: Oct 8, 2026

One price check so far ($72.50 on Oct 8, 2026). The chart fills in as retailers are re-checked.

Recent price checks (1)

Date	Retailer	Price	Stock
Oct 8, 2026, 5:15 PM PT	East Valley Tactical	$72.50	Out of stock

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