As new (never fired, safe kept, defect free) factory assembled Bushmaster 16" M4 flat top barreled upper receiver (1/9) with A1 flash hider. DOES NOT include the BCG, charging handle, carrying handle or handguards. Also includes a Bushmaster +0.40 front sight post (installed) at no additional charge. Everything is 100%... you won't be disappointed!
The only reason I'm selling it is that my eyes ain't what they used to be, so I'm transitioning over to mid-length carbines, with their longer sight radius. Sold, pending funds.
Thanks for looking.
***No pics available... you already know what an M4 upper looks like!