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The Battle Arms Development Workhorse is a tough, duty-grade AR-15 rifle. It features a forged 7075-T6 aluminum receiver, a 16-inch 4150 chrome-moly steel black nitride barrel, a mid-length gas system,…
The Bravo Company Manufacturing (BCM) BCM4 is an AR-15 platform rifle featuring a “MULTI” caliber rollmark (denoting multi-caliber compatibility for 5.56x45mm NATO and .223 Remington). It is built with mil-spec…
The Combat Armory CA10 is an AR-10 platform stripped lower receiver machined to accept multiple calibers within the large-frame AR framework. Technical Specifications Platform: AR-10 (.308 / 7.62x51mm NATO base)…
The Sharps Bros Hellbreaker is a stripped AR-15 lower receiver featuring a design inspired by the P-40 Warhawk fighter plane (notably featuring shark teeth graphics molded into the magwell). It…
The Sharps Bros Livewire Multi-Caliber is a precision CNC-machined 7075-T6 forged aluminum AR-15 stripped lower receiver. It features an ambidextrous bolt release, an oversized integrated trigger guard, a heavily beveled…
Shield Arms SA-4 / SA-15 Multi-Caliber Receiver Specs If you are looking at a multi-caliber Shield Arms lower receiver (like the SA-4 or SA-15 billet lowers), the core specifications include:…
The Shield Arms SA-15 Multi-caliber lower receiver features a patented, built-in folding mechanism machined from 7075-T6 billet aluminum. Marked “MULTI” for broad caliber versatility (such as 5.56 NATO and .300…
The Spike’s Tactical ST-15 “Multi” typically refers to an AR-15 lower receiver stamped with “Multi-Caliber”, meaning it safely accepts various upper receiver calibers like 5.56x45mm NATO [.0.6.4], .223 Remington, and…
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