AR45 .45ACP 8” Complete Upper Receiver


AR-45 8″ slick side .45ACP chambered tactical complete upper receiver with Bolt Carrier Group and charging handle. This upper is build on a billet upper receiver with lrbho (last round bolt hold open).  Not for sale in New York or New Jersey.

In stock

SKU: AR45-COMPLETE-UPPER-8 Categories: , , , ,

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AR45 LRBHO Upper features

8'' .45ACP match grade barrel
4150 Chromoly steel with black nitride finish
Twist: 1:16. 5/8-24 muzzle brake threads
Integrated feed ramp (blowback)
A2 flash hider

Pistol caliber "slick side" upper receiver
Manufactured from certified 7075-T6 aircraft billet aluminum
Black hardcoat anodized per mil 8625 type 3 class 2
Contains integrated last round bolt hold open (lrbho) technology that reliably holds the bolt open when the magazine is empty
Compatible with New Frontier 80-C9 and 80-C45 billet lower receiver


Free floating 7" length slim M-Lok rail
7075-T6 aircraft quality aluminum and black hardcoat anodized

Ramped bcg
USA made 8620 steel with mag phosphate finish
precision milled for use with glock style or traditional ar-45 lower receivers
m-16 cut

Charging handle included.
Compatible with all standard ar-15, ar-9, ar-45 mil spec components.