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Aero Precision M5E1 Builder Set w/ 15" Enhanced M-LOK Handguard - Gunmetal Grain

Aero Precision · Lower Receiver

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Aero Precision M5E1 Builder Set w/ 15" Enhanced M-LOK Handguard - Gunmetal Grain

Best price

$649.99at Dirty Bird

checked Nov 13, 2026

Buy at Dirty Bird

Specifications

Manufacturer
Aero Precision
Color
Gray
Platform
AR-10

Where to buy

StorePriceAvailabilityBuyAdd to build
Dirty Bird $649.99checked Nov 13, 2026 Check store Buy at Dirty Bird

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Dashed line = out of stock. Tracking since Nov 12, 2026.

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Since Nov 12, 2026.

About this part

The Aero Precision M5E1 Builder Set w/ 15" Enhanced M-LOK Handguard - Gunmetal Grain is an AR-10 lower receiver from Aero Precision. One store lists it, Dirty Bird at $649.99.

From the manufacturer

The first of the 2023 Builder Set lineup is here. This edition features a Gunmetal Grain Cerakote finish expertly applied by Blowndeadline. This set will look great built out for almost any application and will certainly stand out from nearly every other finish out there. This builder set includes the finished pieces you need to assemble your own Gunmetal Grain M5E1 Rifle. The set includes an M5E1 Enhanced Upper Receiver, M5 (.308) Lower Receiver and our Gen 2 Enhanced Handguard all with this exclusive finish. This finish is available one time only and in limited quantities, so get it while you can! Includes: M5E1 Enhanced Upper Receiver finished in Gunmetal Grain. Upper receiver is assembled and includes the forward assist, dust cover and barrel nut. 15" Enhanced Gen 2 M-LOK Handguard finished in Gunmetal Grain M5 (.308) Lower Receiver finished in Gunmetal Grain These January 2023 Builder Sets are available in the following configurations: EPC-9 (EPC) 7.3" ATLAS S-ONE Handguard M4E1 (AR15) 10.7" Enhanced Handguard M4E1 (AR15) 15" Enhanced Handguard M4E1 (AR15) 10.3" ATLAS S-ONE Threaded M4E1 (AR15) 15" ATLAS S-ONE Threaded M4E1 (AR15) 10.3" ATLAS R-ONE Threaded M4E1 (AR15) 12.7" ATLAS R-ONE Threaded M4E1 (AR15) 15" ATLAS R-ONE Threaded M5E1 (.308) 15" Enhanced Handguard M5 (.308) 15" ATLAS S-ONE Threaded M5 (.308) 15" ATLAS R-ONE Threaded Specifications: Shipping to FFL Dealer Required Yes Made In America? Yes Platform M5 Select Your Finish Gunmetal Grain Weight(s) 40.17 oz

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