KWA Upper Receiver Kit

The Ronin 18 SPR complete upper receiver comes ready to drop onto your AEG 2.5 or AEG 3, and comprises one component of the first widely customizable AEG line, the KWA Ronin M-Series.

The RN-18 SPR is our variant of the U.S. miltary’s MK12 SPR, which was created by the Naval Special Warfare Center, Crane Division, specifically for SpecOps units with the purpose of bridging the gap between standard M4s and sniper rifles. The RN-18 upper gives you the flexibility to swap between your current AEG 2.5/3 setup and the ultimate outdoor AEG. The RN-18 features an 18 inch barrel and a slim, lightweight aluminum KeyMod free float rail, giving you the ability to reach out and dominate your target. With the addition of any mock suppressor, you’ve got the perfect DMR.

This complete assembly comes with a solid, one-piece upper receiver and a Japanese 6.05 semi-tightbore barrel, along with our one-piece rotary hop-up, so it’s ready for a super-quick ten-second installation on your RM4 or VM4 AEG. The Ronin’s aggressive styling is complemented with a black metal flash hider, right out of the box.

Total Length: 673.1 mm Inner Barrel Length: 457.2 mm Outer Barrel Length: 482.6 mm COMPATIBLE WITH: Ronin 6 PDW Ronin ML Recon Ronin 10 SBR VM4A1 RM4A1 RM4 SR10