6.5 Grendel, 20" Parkerized Heavy Barrel, 1:8 Twist, Rifle Length Gas System, 15" MLOK Rail|Upper


The Duce Tactical AR-15 Complete Upper Assembly has a 20" heavy barrel made of 4150 steel with a parkerized finish and a 1:8 twist rate. The assembly includes a 15" MLOK, a forged upper receiver, bolt carrier group, flash hider, and charging handle. It is chambered in 6.5 Grendel type II and machined with .300 black out feed ramps in the barrel extension.

The Duce AR-15 Complete Upper Assembly, like all Duce products, is subjected to numerous QA/QC checks which for our firearms and upper receiver assemblies includes test firing prior to approval and shipment. This upper assembly is also backed by our Duce limited lifetime warranty. Choose an upper assembly designed by a U.S. company and made in the U.S.A. Choose Duce Tactical Supply.


6.5 Grendel, 20" Parkerized Heavy Barrel



    Wichita Falls, TX USA

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