Geissele Automatics Super Duty Center Tab MK16 Assembled AR-15 Upper Receiver - 13.5" - BLEMULA

Note: This is a cosmetic blem unit — color and finish will vary and product images may not fully represent what you receive, but function is unaffected.

The Geissele Automatics Super Duty 13.5-inch MK16 Kit pairs the mil-spec Super Duty upper receiver with the 13.5-inch MK16 free-float handguard. This mid-length configuration centers on the same handguard platform USASOC officially adopted for the URG-I program, carrying NSN# 1005-01-672-4794 — the exact part number fielded by USASOC.

Features:

• Full-length M1913 Picatinny top rail with M-LOK slots on all four quadrants
• Anti-rotation tabs and set-screws hold zero under sustained fire
• Super Duty upper forged from 7075-T6 aluminum, machined to mil-spec tolerances
• M4 feedramps, milled T-marks, dust cover, and forward assist
• Type 3 hardcoat anodize for corrosion and wear resistance
• Compatible with mil-spec BCGs and .250 takedown pin lowers — best paired with 14.5-inch or 16-inch barrels

The handguard's anti-rotation tabs and set-screws keep it locked to zero under hard use, and the Center Tab barrel nut design matches the system used on fielded USASOC URG-I uppers. A complete build still needs a barrel, BCG, charging handle, and muzzle device. Color shade variance between matched components is normal and expected. It's a top-tier choice for duty rifle builds and precision carbine projects that want the same rail system issued to USASOC operators.

Geissele Automatics supplies precision components to U.S. military units and civilian builders, with manufacturing entirely in-house at their North Wales, Pennsylvania facility.