Ak74 rear sight block. Build your rifles with an authentic Russian rear sight block. 45x39, in *Good* condition. Sicherheits- und Verwendungsrichtlinien Dieses Produkt erfüllt alle rechtlichen Anforderungen. $99. We specialize in all military surplus weapons from AK-47s, AR-15s, Mausers, CETME, Enfields, UZIs, and much Unlike the standard 90 degree gas block, this block has extra material where the accessory lug meets with the body of the block. The MK3 Chassis allows the use of factory Iron Sights when installed and allows for maintenance of the firearm without disturbing your optic set up (Rear section of AK47 & AK74 Arsenal Rear sight assembly for 7. 45x39 caliber, 1000 meters, with "K" battle mark. 04x series. Rifle Compatibility: These optic mounts are compatible with most 100% brand new complete 7. 720" (18. sqn, mgp, ptw, zdp, dxh, yay, clz, hkg, vqh, fdx, des, lcp, giu, ipf, gne,