I have a Bulgarian 5.45 barrel that has been cut down to 9 1/2 inches, includes barrel trunnion and rear sight block. No sight leaf or spring. good beginnings of a krink or a pistol build. $50 shipped.
Also have a 5.45 bolt and carrier w/piston, and top cover, all matching #s,$40 shipped. If you buy both, I'll discount $10. email for pics.