Mid-weight AR45 upper saves ounces without sacrificing performance.
This compact 4.5" AR45 upper features a mid-weight barrel from ELD Performance. Forged from 4150 CMV with a medium profile, this QPQ nitride-treated barrel reduces weight and moves the center of gravity toward the rear of the assembly, offering better ergonomics without sacrificing accuracy or performance downrange.
What’s Included
This is not a firearm. This AR45 upper includes a barreled assembly. Monolithic .45 ACP bolt sold separately.
AR45 Upper Specifications
Upper is assembled in-house and shipped ready to install.
Barrel
- Chamber: .45 ACP
- Contour: Medium
- Length: 4.5”
- Twist Rate: 1:16
- Gas System: Blowback
- Muzzle Threads: .578 x 28
- Material: 4150 CMV
- Finish: QPQ Nitride
- Process: Button Rifled
- Lining: Nitride
- Muzzle: KAK .45 Compensator
Handguard
- Attachment System: 4" M-LOK
- Finish: Type II Hardcoat Anodized (Mil-Spec)
- Top Rail: M1913 Picatinny
- Material: Billet 6061-T6 Aluminum
- Attachment: Free-Float, Barrel Nut
Upper Receiver
- Profile: M4-Type w/ Enlarged Ejection Port
- Material: Forged 7075-T6 Aluminum
- Finish: Type III Hardcoat Anodized (Mil-Spec)
Lower receiver not included. Requires AR45 lower, or AR-15 lower with .45 ACP conversion block.
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
- Caliber:
- .45 ACP
- Barrel Size:
- 4.5"
- Barrel Finish:
- Nitride
- Twist Rate:
- 1/16
