Spikes Tactical Enhanced 16" CHF Complete Upper - Literally Unfired, NIB, in Factory grease, wrapper & box. * Includes Spikes Tactical Bolt Carrier Group and Charging Handle. ----- * FN Cold Hammer Forged, Chrome Lined Barrel made to M249 Specs (typical 20K round life) * M4 Feed Ramped Barrel Extension *Mil-Spec Phosphate Coating * .750 Gas Port * 1/7 Twist -- For detailed specs visit: https://www.spikestactical.com/collections /uppers/products/complete-upper-5-56-midlength-chf-16?variant=32734214028 ----- Purchased for a build - shelved the idea, little time to build or shoot (job). --- MSRP of $680, online at Primary, $612, Priced at $540. --- No Trades-pls don't bother, Bill of Sale, CCW required. Tampa Bay Area --- Remaineder of Build - Mega Arms stripped lower, Spikes Enhaned LPK, BCM Gunfighter Med CH availble separately - all in wrappers.