I have a HPA aap 01 firewad M4 conversion, SEMI LOCKED, works perfect with all heavy weight bbs, upgraded internally, comes with 4, 120rds m4 mags and 1, 320rds mid cap, comes with irons sites
Internals: 150mm maple leaf crazy jet Gbb barrel, maple leaf 50' mr hop bucking, Hadron loki hop unit, short stoke trigger, full TTi hammer set including pins and tti piston head..Fully working 1.1j / 257fps on .36bbs can be tested and chrono. £250ono
