Attention
Attention
16" M4 STYLE AR15 FLAT TOP UPPER RECEIVER ASSEMBLY WITH CAR LENGTH SUPER SLIM FREE FLOAT HANDGUARD - 5.56 / .223
-AVAILABLE WITH OPTIONAL BLACK NITRIDE BOLT GROUP ASSEMBLY
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.
The complete 16" M4 STYLE AR15 FLAT TOP UPPER RECEIVER ASSEMBLY WITH CAR LENGTH SUPER SLIM FREE FLOAT HANDGUARD - 5.56 / .223 comes standard with the following parts:
Complete upper is also available with the optional BLACK NITRIDE Bolt Carrier Group (04945) installed. Please select preference when ordering.
This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. 
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