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Alexander Arms
Overview
The Alexander Arms Tactical 16" Upper is a stripped upper receiver designed for the AR-15 platform, specifically chambered in .50 Beowulf. With a barrel length of 16 inches and a twist rate of 1:20, this upper is optimized for stability and accuracy, allowing builders to effectively harness the power of the .50 Beowulf cartridge. This upper commonly appears in builds that utilize a carbine gas system, making it suitable for those looking to create a robust firearm capable of handling heavy-duty applications.
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Builders have been adding the Alexander Arms Tactical 16" Upper .50 Beowulf 1:20, Black - UTA50 to their builds on GunPartPicker since January 2026. All time, it ranks #306 of the 1,797 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in .50 Beowulf, nearly all on carbine-length gas, and nearly all AR-15.
It was hard to find in September 2026, in stock on only 8 of the 28 days we checked, and today only KY Gun Company has it in stock. It dipped to $751.90 at BattleHawk Armory for a stretch in September 2026, well under its usual $859.84, so sales do come around. Buying today, the lowest price is $837.46 at KY Gun Company, above September's low of $751.90, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every upper receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: Most Popular AR-15 Upper Receivers →Check it against the live catalog:
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