** Product pictured is California Legal as is and does not require CA Compliant parts or modification. CA Compliant parts are buyer's responsibility when built into rifle. **
Click OTHER DETAILS to read more about this product from the manufacturer.
This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.
Includes:
M4E1 Threaded Assembled Upper Receiver
15" ATLAS S-ONE Handguard
16" .223 Wylde Mid-Length Stainless Steel Barrel
Low Profile Gas Block and Mid-Length Gas Tube
Product comes assembled
This complete upper does not include BCG or Charging Handle.
M4E1 Threaded Upper Receiver Features:
New enhanced forging that gives the upper receiver a "billet look"
New picatinny profile that blends seamlessly with our Enhanced Series Handguards
M4 Feedramps
.250 takedown pin holes
Laser engraved T-marks
Includes port door and forward assist installed
ATLAS S-ONE Handguard Features:
Front and rear picatinny rail
Eliminated center of top rail for weight reduction
Indexing grooves in 12:00 position for positive grip control
Quick disconnect sling socket at the 3, 6 and 9 o'clock positions
Compatible with low profile gas blocks
1.3" Inside diameter
1.5" Outside diameter
Compatible with mil-spec AR15 upper receivers and barrels
16" .223 Stainless Steel Mid-Length Barrel Features:
.223 Wylde 16" Mid-Length Barrel, 1/8 Twist
416R Stainless Steel
Bead Blasted Finish
.750 gas block journal
Mid-length gas system
M4 Feed Ramp Extension
HP and MPI tested
Standard A2 flash hider
