Weaver-style front base lets you mount electronic and optical
sights and still retain the use of issue sights. Open center channel
gives unrestricted view of sights; allows red dot and iron sights to
be zeroed to the same point of impact. Provides clearance for M-4
and large diameter handguards equipped with integral flashlights.
SPECS: Aluminum, black, anodized, matte finish. 10" (25cm)
long. 4.1 oz. (115 g) wt. Fits A-1 and A-2 upper receivers. Accepts
Weaver-style rings.
Catalog page 85