AR-15 6.5 Grendel 16" Complete Upper Receiver w/ ATLAS S-ONE Handguard This drop-in 6.5 Grendel Type 2 upper will attach to virtually any standard AR-15 lower assembly.
Upgrade the performance of your AR-15 build with this 6.5 Grendel Complete Upper Receiver. Designed to be a low recoil/high accuracy cartridge, the 6.5 Grendel is ideal for those looking to stretch the legs of their AR15 rifle, with proven results at 1000+ yards.
- M4E1 Threaded Assembled Upper Receiver
- ATLAS S-ONE Handguard of choice
- 6.5 Grendel 16" Stainless Steel, Mid-Length Barrel
- .750 Low Profile Gas Block and Mid-Length Gas Tube
- A2-style Flash Hider
- Product comes assembled
- This upper assembly DOES NOT include a 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
6.5 Grendel 16" Stainless Steel, Mid-Length Barrel Features:
- 6.5 Grendel 16" Mid-Length Barrel
- 416R Stainless Steel finish
- 1/8 twist
- 5/8x24 Threaded Pitch
- SPR Profile
- .750 gas block journal
- Mid-length gas system
- M4 Feed Ramp Extension
- HP and MPI tested
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