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AERO PRECISION
M4E1 UPPER RECEIVERS COMPLETE 5.56MM

840014601547 100054449
This complete upper includes Aero Precision’s 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. Aero Precision’s 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. M4E1 Threaded Assembled Upper Receiver Choice of 12” or 15” M-LOK ATLAS S-ONE Handguard 16" 5.56 Mid CMV Barrel, 18” Rifle Barrel Low Profile Gas Block and Mid-Length/Rifle Length Gas Tube Depending on Configuration Product comes assembled This complete upper does not include BCG or Charging Handle 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" 5.56 Mid Barrel Features: 5.56 NATO 16" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled Mid-length gas system, .0785 gas port M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider 18" 5.56 Rifle Length Barrel Features: 5.56 Nato 18" Rifle Length Barrel 4150 CrMoV w/ QPQ finish 1/7 twist .750 gas block journal Rifle length gas system M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider
797.8 832.6 3 GBP
Product no.: 100054449
AERO PRECISION 16" ASSEM UPPER MID-LEN BBL 12" M-LOK ATLAS S-ONE HG BLK
Mfr Part: APAR700304M7 840014601547 This complete upper includes Aero Precision’s 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. Aero Precision’s 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. M4E1 Threaded Assembled Upper Receiver Choice of 12” or 15” M-LOK ATLAS S-ONE Handguard 16" 5.56 Mid CMV Barrel, 18” Rifle Barrel Low Profile Gas Block and Mid-Length/Rifle Length Gas Tube Depending on Configuration Product comes assembled This complete upper does not include BCG or Charging Handle 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" 5.56 Mid Barrel Features: 5.56 NATO 16" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled Mid-length gas system, .0785 gas port M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider 18" 5.56 Rifle Length Barrel Features: 5.56 Nato 18" Rifle Length Barrel 4150 CrMoV w/ QPQ finish 1/7 twist .750 gas block journal Rifle length gas system M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider
797.8 GBP 7 £797.80 *
Is a 'Call to order' product.
Not available.
Specs: Cartridge: 5.56 mm NATO Color: Black Finish: Anodized Length: 16'' Make: AR-15 Style: Complete Twist: 1-7

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The M4E1 Complete Upper Receiver includes a lightweight ATLAS S-ONE Handguard and is designed for a balance of size, weight, and stability.
  2. It features a 16" mid-length or 18" rifle-length barrel with a 1/7 twist, made from 4150 CrMoV with QPQ finish, and comes with a standard A2 flash hider.
  3. The upper receiver does not include a BCG or Charging Handle and is compatible with mil-spec AR15 upper receivers and barrels.

Attributes

Cartridge: 5.56 mm NATO Colour: Black Finish: Anodized Length: 16'' Make: AR-15 Style: Complete Twist: 1-7 Delivery weight: 1.814kg

Item details

Made in USA
US export classification: I(g)



Product no.: 100054450
AERO PRECISION 16" ASSEM UPPER MID-LEN BBL 15" M-LOK ATLAS S-ONE HG BLK
Mfr Part: APAR700305M7 840014601585 This complete upper includes Aero Precision’s 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. Aero Precision’s 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. M4E1 Threaded Assembled Upper Receiver Choice of 12” or 15” M-LOK ATLAS S-ONE Handguard 16" 5.56 Mid CMV Barrel, 18” Rifle Barrel Low Profile Gas Block and Mid-Length/Rifle Length Gas Tube Depending on Configuration Product comes assembled This complete upper does not include BCG or Charging Handle 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" 5.56 Mid Barrel Features: 5.56 NATO 16" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled Mid-length gas system, .0785 gas port M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider 18" 5.56 Rifle Length Barrel Features: 5.56 Nato 18" Rifle Length Barrel 4150 CrMoV w/ QPQ finish 1/7 twist .750 gas block journal Rifle length gas system M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider
813.5 GBP 15 £813.50 *
Is a 'Call to order' product.
Not available.
Specs: Cartridge: 5.56 mm NATO Color: Black Finish: Anodized Length: 16'' Make: AR-15 Style: Complete Twist: 1-7
Product no.: 100054451
AERO PRECISION 18" ASSEM UPPER RIFLE-LEN BBL 15" M-LOK ATLAS S-ONE HG BLK
Mfr Part: APAR700305M8 840014601622 This complete upper includes Aero Precision’s 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. Aero Precision’s 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. M4E1 Threaded Assembled Upper Receiver Choice of 12” or 15” M-LOK ATLAS S-ONE Handguard 16" 5.56 Mid CMV Barrel, 18” Rifle Barrel Low Profile Gas Block and Mid-Length/Rifle Length Gas Tube Depending on Configuration Product comes assembled This complete upper does not include BCG or Charging Handle 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" 5.56 Mid Barrel Features: 5.56 NATO 16" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled Mid-length gas system, .0785 gas port M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider 18" 5.56 Rifle Length Barrel Features: 5.56 Nato 18" Rifle Length Barrel 4150 CrMoV w/ QPQ finish 1/7 twist .750 gas block journal Rifle length gas system M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider
832.6 GBP 8 £832.60 *
Is a 'Call to order' product.
Not available.
Specs: Cartridge: 5.56 mm NATO Color: Black Finish: Anodized Length: 18'' Make: AR-15 Style: Complete Twist: 1-7

Upgrade your AR-15 with the Aero Precision M4E1 Complete Upper! 🎯 Featuring a 16" mid-length barrel, 12" M-LOK ATLAS S-ONE HG & sleek anodized finish. Get started on your lightweight build now! 🔧🛠️

This complete upper includes Aero Precision’s 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. Aero Precision’s 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. M4E1 Threaded Assembled Upper Receiver Choice of 12” or 15” M-LOK ATLAS S-ONE Handguard 16" 5.56 Mid CMV Barrel, 18” Rifle Barrel Low Profile Gas Block and Mid-Length/Rifle Length Gas Tube Depending on Configuration Product comes assembled This complete upper does not include BCG or Charging Handle 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" 5.56 Mid Barrel Features: 5.56 NATO 16" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled Mid-length gas system, .0785 gas port M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider 18" 5.56 Rifle Length Barrel Features: 5.56 Nato 18" Rifle Length Barrel 4150 CrMoV w/ QPQ finish 1/7 twist .750 gas block journal Rifle length gas system M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider