MK16 Urg-I Complete Upper Receivers 5.56mm - MK16 14.5" URGI Upper CHF Barrel, Ach, Rebcg 5.56mm Ddc
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Overview
The Geissele Mk16 Urg-I Complete Upper Receiver is a fully assembled upper designed for the AR-15 platform, featuring a 14.5-inch barrel chambered in 5.56 NATO. This complete upper includes critical components like the ACH and REBCG, ensuring reliable performance and compatibility with a wide range of lower receivers. Builders often incorporate this upper in 5.56 NATO caliber builds, making it a versatile choice for various applications.
Specifications
MK16 Urg-I Complete Upper Receivers 5.56mm - MK16 14.5" URGI Upper CHF Barrel, Ach, Rebcg 5.56mm Ddc
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October 2026 on GunPartPicker
Geissele MK16 Urg-I Complete Upper Receivers 5.56mm - MK16 14.5" URGI Upper CHF Barrel, Ach, Rebcg 5.56mm Ddc ranked #170 of the 844 upper receivers builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #347 of the 2,069 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in 5.56 NATO and nearly all AR-15.
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