DPMS Barrel AR-15 Pistol 5.56x45mm NATO Heavy Contour 1 in 9" Twist 11.5" Chrome Lined Chrome Moly Matte with Front Sight Tower Pre-Ban - MidwayUSA
$165 discount code for june 223610 gives $10 off at checkout. they just got these in stock and there are about a dozen left.
$155 for a chrome lined barrel ain't too bad. these have been hard to come by since the panic for less than $200.
you can use these to build a pistol or a 11.5" barreled rifle with a 4.5"-5.5" welded or blind pinned for a total of at least 16".
or you can do the NFA thing pay the $200 and get the proper stamp and do a SBR--while you can.
these come with barrel nut, m4 style ramps, front sight base and end cap. 1/2-28 on the muzzle. they are H-bar profile, chrome barrel and chamber, 1 turn in 9" twist rate, NATO spec chamber.
these make a pretty decent xm-177e2 replica with the correct length flash hider pinned/welded/soldered on.