Alexander Arms UST17 Upper Parts Kits 17 HMR 18 in Black Cerakote Aluminum Receiver M-LOK Handguard for AR-15 Includes 2 Mags

17 HMR AR-15 Upper Features: 18" Barrel, 1:9 Twist Rate, 1/2-28RH Threading, A2 Flash Hider Included, Blowback Operating System, Black Color (Optional Cerakote Upgrades Below), Two 10-round magazines, Parts Kit for Lower Conversion Included, Weight of upper is 4.5 pounds

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Barrel Length Range:	18" to 18.99"
Handguard Finish:	Black
Capacity:	10rd
Barrel Finish:	Black
Muzzle:	A2 Flash Hider
Receiver Finish:	Black Cerakote
Handguards:	M-LOK
Twist:	1:9"
Gun Platform:	AR-Style
Weight:	4.50 lbs
Firearm Fit:	AR-15
Firearm Type:	AR-15
Thread Pattern:	1/2"x28
Caliber:	17 HMR
Receiver Material:	Aluminum
Barrel Length:	18"
Model:	Upper Parts Kits
Max Capacity:	10
Sights:	Optic Ready