Picatinny STANAG 15.9&rdquo; Long Top Rail Hi-Point 4095TS, 4595TS & 1095TS Rifles Machined from 6061-T6 aluminum to Picatinny (MIL STD-1913) / STANAG 2324 & 4694 specifications Hard anodized per MIL-A-8625F TYPE III CLASS 2 BLACK Compatible with 1095TS, 4095TS & 4595TS (See SKU SR-HP995TS-TE-BLK for 995TS/3895TS compatible version) Best in class length - 403mm (15.9") provides 37 NATO standard recoil slots of accessory rail space Optional adapter (SKU SA-HPxx95TS-OEM & SA-HPxx95TS-OEMT) available to mount OEM rear peep sight to replacement rail and front open sight post adapter (SKU SA-HPxx95TS-OFS) enables precision co-witnessing of a variety of standard optics and iron sights