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FGC9 MKII AR9 Barrel Upper, Modified Stingray, MKII Retainers

@FGCKits 153.4MiB Dec. 6, 2022, 5:56 p.m.

9x19mm FGC-9 Hybrid Firearm

This FGC9 MKII upper has been modified to fit AR9 barrels, and to accept both MKI and MKII style charging handles. A modified Stingray style retainer is provided, which clamps the AR barrel with 4x M4 grub screws to reduce barrel sag when thermal cycled. .STEP and .STL provided.

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