![mac 10 5.56 upper mac 10 5.56 upper](https://themepack.me/i/c/749x468/media/g/688/dope-theme-wp8.jpg)
00158 - AR15 M4 FLAT TOP UPPER RECEIVER WITH FORWARD ASSIST AND EJECTION PORT DUST COVER FOR AR15 RIFLE.The complete AR15 M4 Style 16" Upper receiver assembly comes standard with the following parts:
![mac 10 5.56 upper mac 10 5.56 upper](https://zborgaming.com/wp-content/uploads/2020/11/23-1.png)
Now you can get the M4 look and feel for your AR15 without having to assemble all the small parts! Our assembly team builds the upper receiver with an M4 profile barrel and M4 Handguards so its ready to drop on to your lower receiver. AVAILABLE WITH OPTIONAL BLACK NITRIDE BOLT GROUP ASSEMBLY AR15 FAKE SUPPRESSORS AR15 FAKE SUPPRESSORSġ6" M4 STYLE AR15 FLAT TOP UPPER RECEIVER ASSEMBLY - 5.56 /.AR15 STRIPPED UPPERS & PARTS AR15 STRIPPED UPPERS & PARTS.AR15 COMPLETE UPPERS AR15 COMPLETE UPPERS.AR15 80% LOWER RECEIVER AR15 80% LOWER RECEIVER.ADAPTERS AND FAKE SUPPRESSORS COMBOS ADAPTERS AND FAKE SUPPRESSORS COMBOS.ADAPTERS FOR WALTHER ADAPTERS FOR WALTHER.ADAPTERS FOR COLT / UMAREX ADAPTERS FOR COLT / UMAREX.ADAPTERS FOR SMITH & WESSON ADAPTERS FOR SMITH & WESSON.ADAPTERS FOR SIG SAUER ADAPTERS FOR SIG SAUER.V - BLOCK & BOLTS FOR 10/22® V - BLOCK & BOLTS FOR 10/22®.BARREL BANDS FOR 10/22® BARREL BANDS FOR 10/22®.MACHINE GUN BARRELS MACHINE GUN BARRELS.SBR BARRELS FOR 10/22® SBR BARRELS FOR 10/22®.PISTOL BARRELS FOR 10/22® PISTOL BARRELS FOR 10/22®.TAKEDOWN BARRELS FOR 10/22® TAKEDOWN BARRELS FOR 10/22®.TAPER BARRELS FOR 10/22® TAPER BARRELS FOR 10/22®.BULL BARRELS FOR 10/22® BULL BARRELS FOR 10/22®.REPLACEMENT PARTS FOR 10/22® REPLACEMENT PARTS FOR 10/22®.MAGS & LOADERS FOR 10/22® MAGS & LOADERS FOR 10/22®.FAKE SUPPRESSORS FOR 10/22® FAKE SUPPRESSORS FOR 10/22®.FLASH HIDERS & MUZZLE BRAKES FOR 10/22® FLASH HIDERS & MUZZLE BRAKES FOR 10/22®.SCOPE RAILS & RINGS FOR 10/22® SCOPE RAILS & RINGS FOR 10/22®.MAG RELEASES FOR 10/22® MAG RELEASES FOR 10/22®.CHARGING HANDLES FOR 10/22® CHARGING HANDLES FOR 10/22®.TRIGGER ASSEMBLIES & PARTS FOR 10/22® TRIGGER ASSEMBLIES & PARTS FOR 10/22®.MATCH GRADE BOLTS FOR 10/22® MATCH GRADE BOLTS FOR 10/22®.BARRELS & BARREL BANDS FOR 10/22® BARRELS & BARREL BANDS FOR 10/22®.PIKE ARMS® ELITE22TD™ 80% PICATINNY RAIL TAKEDOWN RECEIVER PIKE ARMS® ELITE22TD™ 80% PICATINNY RAIL TAKEDOWN RECEIVER.PIKE ARMS™ ELITE22™ 80% 10/22™ COMPATIBLE RECEIVER PIKE ARMS™ ELITE22™ 80% 10/22™ COMPATIBLE RECEIVER.