Fits All Grooved Receiver .22's
Adjusts to fit any .22 with a receiver groove that measures .300" to .600" wide. No drilling, tapping or modifications required. Internal micrometer adjustments with positive clicks. Lock-screws secure adjustments against accidental change. Mounts low but may require a higher than standard front sight.
Big Book Catalog, Issue:67, Page:291
Big Book Catalog, Issue:67, Page:293
New Product Supplement, Issue:581, Page:004
SPECS: FP-GR 13/4" (4.4cm) wide. 121/32" (4.2cm)
high. Weighs 11/4 oz. (35.4g). Black, anodized aluminum body.
Bright steel "standard style" windage and elevation screws. Blued
steel aperture, .0093" (2.4mm) opening. FP-GR-TK:
25/32" (5.5cm) wide. 15/8" body. Blued steel "Target Knobs"
adjust windage and elevation. Blued steel aperture. .093" (2.4mm)