This update covers the latest changes to the PSA Sabre 6mm ARC, including a new enhanced receiver set, full ambi lower, S5 buffer system, and the new Sabre E4 bolt with dual ejectors and tapered lugs. The rifle features a 16" 1:7 twist 6mm ARC barrel and Sabre Plan B muzzle device.

The project is now in final endurance testing and is close to moving into full production.