used LW SRT upper, 5.56mm, phantom flash hider, free floating barrel. duracoat black.
About 150 rounds through it maybe. $1475 shipped.
Also HK type centurion diopter sights available for $195 (front and rear) + hk sight tool
POF-USA 415 LOWER with magpul CTR buttstock and tango down battlegrip $295 + FFL copy
buy everything together and I'll give you a deal.
thanks for your interest. contact firstname.lastname@example.org for fastest response.