Parts by category

CMMG Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver Armor Black

CMMG Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver Armor Black

CMMG · Upper Receiver

No ratings yet

Best price

$929.99at OpticsPlanet

In stock Sale checked Oct 13, 2026

Buy at OpticsPlanet

Where to buy

StorePriceAvailabilityBuyAdd to build
OpticsPlanet $929.99Salechecked Oct 13, 2026 In stock Buy at OpticsPlanet

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

Lowest in-stock price in the last 30 days: $929.99 at OpticsPlanet. Dashed line = out of stock. Tracking since Oct 12, 2026.

Show the prices as a table
StoreLatestLowestHighest
OpticsPlanet$929.99$929.99$929.99

Since Oct 12, 2026.

About this part

The CMMG Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver Armor Black is a 12.5" .308 / 7.62x51 upper receiver from CMMG. One store lists it, OpticsPlanet at $929.99. The lowest in-stock price in the last 30 days was $929.99 at OpticsPlanet.

Fits and works with

Caliber
.308 / 7.62x51 · Shop matching ammo
Bolt
AR-10 (.308 / 6.5 CM) · Bolt carrier groups
Barrel length
12.5" · Handguards

Specifications

Manufacturer
CMMG
Color
Black
Platform
AR-10
Caliber
.308 / 7.62

From the manufacturer

CMMG Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver Armor Black. Who needs that? Thanks to the quick 1:3 twist rate 8.6 BLK does with less barrel length what other calibers could only dream of. Great for someone wanting to swap uppers to shoot 8.6 BLK or for those wanting to start a new build. The CMMG Mk3 platform is based on the popular DPMS Gen 1 high-pattern LR308 design. Check out our CMMG Resources article to learn more about the Mk3 platform. Available in different Cerakote finishes all CMMG Upper Groups come complete with bolt carrier group and ZEROED accessories. Specifications for CMMG Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver: Manufacturer: CMMG Caliber: 8.6mm Blackout Overall Length: 21.5 in Barrel Length: 12.5 in Barrel Profile: Medium Taper Gas System Length: Pistol Length Barrel Twist Rate: 1-3 Handguard Type: M-LOK ATLAS S-ONE Muzzle Device: CMMG Zeroed Fabric/Material: Aluminum Handguard Length: 11 in Gun Type: Rifle Gun Make: CMMG Gun Model: CMMG Banshee MK3 CMMG Mk3 Features of CMMG Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver Lifetime Quality Guarantee Package Contents: CMMG Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver ZEROED Polymer Dust Cover .308 ZEROED AR10/Mk3 Ambi Charging Handle ZEROED Linear Compensator 8.6 BLK What firearm models does the manufacturer say CMMG Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver is compatible with? The manufacturer suggests that CMMG Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver is compatible with CMMG Mk3 CMMG Banshee MK3CMMG 33B430C-AB: Banshee Mk3 8.6 Blackout 12.5 inch Upper Receiver Armor Black

Similar upper receivers

More CMMG parts

Rating

No ratings yet

Log in to rate this part.

Comments

Please log in to read and leave comments.

$929.99 at OpticsPlanet
Buy