Designed to fit the HK-91-93-94,MP5 and SP89. The A.R.M.S. G-3 locks solidly to the upper receiver of the rail while allowing use of the iron sights. The mounting platform provides the A.R.M.S. Universal rail to accept both STANAG and dovetail fastenings, for both day optics, night vision and lasers, as required. STANAG rings and rails can also be utilized. The A.R.M.S. G-3 is manufactured from 4140 steel and phosphate finished black to spec DOD-16232
