ODIN Works 6mm ARC Complete Upper Receiver 21" XL Rifle Length Barrel - 17.5" O2 Lite M-LOK Rail
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Odin Works
Overview
The Odin Works 6mm ARC Complete Upper Receiver features a 21-inch barrel designed for optimal performance with the 6mm ARC caliber, making it suitable for precision shooting and long-range engagements. The rifle-length gas system enhances reliability and reduces recoil, allowing for smoother cycling with each shot. This upper receiver is ideal for builds focused on accuracy and range, particularly in competitive shooting or hunting scenarios.
Specifications
ODIN Works 6mm ARC Complete Upper Receiver 21" XL Rifle Length Barrel - 17.5" O2 Lite M-LOK Rail
Build history on GunPartPicker
Builders have been adding the ODIN Works 6mm ARC Complete Upper Receiver 21" XL Rifle Length Barrel - 17.5" O2 Lite M-LOK Rail to their builds on GunPartPicker since March 2026. All time, it ranks #917 of the 1,654 upper receivers builders have added.
It was out of stock everywhere we track for all of September 2026, and today the one retailer we track is out of stock. Listed prices start at $901.55 at Primary Arms for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 36 retailers
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