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Questions & Answers
Will these work with 45acp barrel and bolt carrier ? Expert Answer

No it will not as this is designed for a 9mm caliber.

by Brandon B, Gear Expert, November 23, 2021
Will this work with the CMMG RDB BCG and mk9 AR9 lower by CMMG? Expert Answer

Aero Precision states the Aero Precision EPC-9 Threaded Assembled Upper Receiver and EPC-9 in general are compatible with some parts from other manufacturers but recommends using all Aero Precision EPC-9 parts to ensure proper function. I recommend contacting Aero Precision in regard to the Aero Precision EPC-9 Threaded Assembled Upper Receiver and the CMMG RDB BCG.

by Hunter, Gear Expert, November 7, 2022
Customer Reviews
Helpful Positive Review fde EPC-9 upper by jrb1981, Verified Owner, January 22, 2022
This upper is the newest release from aero precision starting their Pistol Caliber Carbine lineup. I have completed a few of these Aero Precision EPC-9 builds and all of them have started and finished out flawlessly. It was paired with a EPC-9 lower ...
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2/2 found this helpful
Helpful Positive Review Best PCC Upper! by Mark L, January 11, 2022
If you have a PCC that doesn't have a LRBHO, you just need to buy this. The upper is super clean, plus the functionality of bolt hold open make this a 5 star. My only wish is that it had a dust cover but it's definitely not a deal breaker. I have ...
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1/1 found this helpful
Most Recent Reviews Not compatable with Magpul BAD lever!!! by Clayton Shields, Verified Owner, January 19, 2025
Another great product from Aero however the LRBHO mechanism makes it incompatible with it Magpul BAD lever.
Most Recent Reviews EPC9 upper by Rick, Verified Owner, April 7, 2024
Hard to find, have been looking for it for a while. Blab yo be able to complete my build
Most Recent Reviews Great product and service by Slowlane, Verified Owner, January 10, 2024
Just what I needed for my new build. Price was great and shipping was Fast
Most Recent Reviews aero EPC 9 mm upper receiver w Lrbho by Jon Park, Verified Owner, November 19, 2023
Everything you need and nothing you don’t! Have used with three different BCGs with no issues and tried with aero Ballistic Advantage and Palmetto Armory barrel! No issues
Read All 7 Reviews
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Product Info for Aero Precision EPC-9 Threaded Assembled Upper Receiver w/ LRBHO

The EPC-9 upper receiver is the perfect addition to any AR9 build. Including a last round bolt hold open mechanism and compatible with most standard AR15 barrel nut and handguard combinations this upper receiver will help take ypistol caliber build to the next level. Includes: Upper Receiver, Pre-installed last round bolt hold open assemblyimage

WARNING: California`s Proposition 65

Specifications for Aero Precision EPC-9 Threaded Assembled Upper Receiver w/ LRBHO:

Manufacturer: Aero Precision
Fabric/Material: 7075-T6 Aluminum
Caliber: 9mm Luger, .40 S&W
Gun Make: Aero Precision
Gun Model: Aero Precision EPC-9
Condition: New
Mount Type: Picatinny
Projectile Caliber: .355 Caliber
Bolt Carrier Group Included: No
Charging Handle Included: No
Gun Rail: Picatinny
Country of Origin: USA
Attachment Type: Picatinny
Gun Type: Rifle
Weight: 7 oz

Features of Aero Precision EPC-9 Threaded Assembled Upper Receiver w/ LRBHO

  • Last round bolt hold open mechanism
  • Accepts most AR15 compatible barrel nuts and handguards
  • Dimple above threads to allow for proper handguard timing
  • Standard AR15 takedown/pivot pin lug pattern
  • Machined from custom forged 7075-T6 aluminum
  • Laser engraved T-marks

Package Contents:

  • Aero Precision EPC-9 Threaded Assembled Upper Receiver w/ LRBHO

Aero Precision EPC-9 Threaded Assembled Upper Receiver w/ LRBHO Orderable Models

List of Orderable Models

Aero Precision EPC-9 - 9/40 Threaded Stripped Upper Receiver w/ LRBHO, Kodiak Brown, APAR620280AC , MPN: APAR620280AC , UPC: 840014622092 , Code: 29D-UPR-TH9AU-APAR620280AC
Aero Precision EPC-9 - 9/40 Threaded Stripped Upper Receiver w/ LRBHO, OD Green, APAR620279AC , MPN: APAR620279AC , UPC: 840014622085 , Code: 29D-UPR-TH9AU-APAR620279AC
Aero Precision EPC-9 - 9/40 Threaded Assembled Upper Receiver w/ LRBHO, Anodized Black, APAR620201AC , MPN: APAR620201AC , UPC: 840014611782 , Code: 29D-UPR-TH9AU-APAR620201AC
Aero Precision EPC-9 - 9/40 Threaded Assembled Upper Receiver w/ LRBHO, FDE, APAR620202AC , MPN: APAR620202AC , UPC: 840014611799 , Code: 29D-UPR-TH9AU-APAR620202AC

Proposition 65 Warning for California Consumers

For more information go to www.p65warnings.ca.gov

Notification

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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