T91 Front Sight Assembly For Wolf A1 Barrel (MIL-STYLE)

Tapped Barrel Lock Pin Included.

Direct Replacement For Wolf A1 Upper, No Barrel Swap.

Only For 18mm Gas Port Journal Wolf A1 Barrels.

Drill bit size: 2.2 mm for gas port, 3.0 mm for Barrel Lock Pin.

This Front Sight Assembly Require Gas Port and Barrel Lock Pin Drilled, Fitting and Modification Required.

Certified Gunsmith Recommended.

Made in Taiwan.

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