B-Square Military bases are made of anodized aluminum with a durable blue finish. Mounts right over the top of the receiver so it cannot be used with open sights (except Springfield 1903, which is a see-through design). Comes with two 1" InterLock (Weaver-Style) rings.
Fits: FN FAL, LAR, Springfield SAR 8, SAR 48 & SAR 4800
See-through design allows use of open sights.
Clamps to top of receiver.
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