MEGA ARMS CUSTOM BUILT AR15 RIFLE BY CLASS 3 TACTICAL, MEGA MODEL-# "GTR-3S" BILLET LOWER RECEIVER & MEGA UPPER, 5.56 NATO, 18" 416 STAINLESS STEEL BLACKHOLE WEAPONRY MATCH BARREL WITH FULL FLUTING BEFORE AND AFTER THE GAS BLOCK. SAMSON MFG. STAR-P QUAD RAIL MID-LENGTH, ADAMS ARMS PISTON GAS SYSTEM, THE BARREL HAS BEEN MELONITE COATED INSIDE & OUT AND IS HAND LAPPED FOR ACCURACY! MAGPUL CARBINE STOCK, AMBI-SAFETY/SELECTOR, HOGUE TACTICAL GRIP, TIMNEY MATCH TRIGGER, KNS HAMMER & TRIGGER PINS, TACTICAL DUAL SLOT BUFFER SLING PLATE, KNS FRONT PIVOT PIN, YANKEE HILL FLASH SUPPRESSOR, TACTICAL CHARGING HANDLE WITH COMBAT LATCH THAT HAS BEEN NP3 TREATED FOR LESS FRICTION AND RELIABILITY! ADAMS ARMS MID-LENGTH GAS PISTON SYSTEM, FOREARM TACTICAL GRIP, TACTICAL OVERSIZED MAGAZINE RELEASE, DUAL ACTION COMBAT BOLT & CARRIER LATCH/RELEASE. THIS IS A "ONE OF KIND WEAPON" WE HAVE NO MORE OF THESE RIGHT NOW & BECAUSE MEGA ARMS ISN'T TAKING ANY NEW RECEIVER ORDERS! ONCE IT IS SOLD WE DO NOT KNOW WHEN WE CAN EXPECT ANY NEW MEGA ARMS BILLET LOWERS & UPPERS! COMES WITH (2) MAGPUL MAGAZINES & CASE.