6.5 Grendel GDMR Complete Upper Assembly
The GDMR model features a precision cut-rifled, 5R rifled, fluted barrel measuring 20 or 24 inches, and 9/16-24 muzzle threads (non-optional) with standard A2-style flash hider installed. Standard build features our extended-length MK10 handguard, which is made of G10 composite material and vented to aid barrel cooling with the top vents offset from the sight line to minimize mirage. Direct impingement operating system. The handguard features a removable, top-mounted Picatinny rail section measuring 14 inches long, which spans the length of the handguard to achieve a virtually seamless top rail from the back of the receiver to the front of the handguard. Furniture color is olive drab. Both barrel length options feature a 1:8.75 twist. This upper receiver assembly ships with one 10-round magazine. Weight of 20-inch upper is 5.4 pounds. This unit is 100% complete and is compatible with any standard-specification lower receiver (no modifications required).
Barrel Length - Please select a barrel length
Color Option - Please select a finish color for your rifle
Muzzle Upgrades - Please select a muzzle upgrade
Base Price: $1950.00
Selected Options: $0.00
Total Price: $1950.00

Weight and size dimensions are measured with the 20-inch barrel.

All Alexander Arms® upper receiver assemblies are fully-complete, function-tested, and ready to fire.

Weight (may be approximate): 5.40 lb. / Each

Dimensions (LxWxH): 27.00 x 3.00 x 3.00 in.
Don't forget your ammunition and extra magazines! - This upper receiver assembly ships with one 10-round magazine. Visit the products below to add more to your order. Be sure to add MK10 rail sections for your handguard! We strongly recommend that you also add ammunition to your order instead of placing a separate order to avoid lengthy ammunition back-order situations.
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