11.5" FLUTED 1:9 TWIST M4 AR15 FLAT TOP UPPER RECEIVER ASSEMBLY WITH SUPER SLIM FREE FLOAT HANDGUARD - 5.56 / .223

-AVAILABLE WITH OPTIONAL BLACK NITRIDE BOLT GROUP ASSEMBLY

For pistol and SBR applications, our 11.5" Flat Top Upper Receiver Assembly provides the complete upper ready to drop on your lower without having to assemble all the small parts!  Our assembly team builds the upper receiver with a 11.5" flutted heavy barrel and super slim free float car handguards so its ready to go. 

The complete 11.5" FLUTED 1:9 TWIST M4 AR15 FLAT TOP UPPER RECEIVER ASSEMBLY WITH SUPER SLIM FREE FLOAT HANDGUARD comes standard with the following parts:

• 03796 - AR15 / M16 .223 / 5.56 1:9 TWIST M4 EXTENSION 11.5" FLUTED HEAVY BARREL
• 00158 - AR15 M4 FLAT TOP UPPER RECEIVER WITH FORWARD ASSIST AND EJECTION PORT DUST COVER FOR AR15 RIFLE
• 03301 - CHARGING HANDLE ASSEMBLY
• 02038 - LOW PROFILE SHORT STEEL .750 GAS BLOCK FOR AR15
• 01657 - CAR LENGTH GAS TUBE FOR AR15 / M16
• 01660 - GAS TUBE ROLL PIN FOR AR15 / M16
• 03471 - AR15 M-4 HANDGUARDS - DOUBLE HEAT SHIELD
• 04683 - UTG PRO MODEL 4 / AR CAR LENGTH SUPER SLIM FREE FLOAT HANDGUARD
• 00283 - AR15 A2 "PARTIAL CAGE" FLASH HIDER
• 01661 - CRUSH WASHER FOR .223 / 5.56 / .22LR THREADED BARRELS - AR15 / M16

Complete upper is also available with the optional BLACK NITRIDE Bolt Carrier Group (04945) installed.  Please select preference when ordering.