![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/UPK-46-AR300BLKC%2062-1000x1000.jpg "AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]")
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-46-AR300BLKC/AR-300-Blackout-16-Barrel-W-10-12-15-M-LOK-Handguard-Option-Carbine-Upper-Build-U46-ASSEMBLED(2)-1000x1000.jpg "AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' M-LOK Handguard Option | Carbine Upper Build UPK46 [ASSEMBLED]")
-35 %
FML-TC-C | Handguard
OptionAR-15 M-LOK Handguard "C" Cut
10" 12" 15"16" .300 Blackout 1:8 Twist | Pistol Gas
System| Parkerized | Made in U.S.A.AR-10 .308 A2 Style Birdcage Muzzle Brake
W/Crush WasherAR-15 Mil-Spec Upper Rece..
$319.99 $489.99
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' Keymod Handguard option | Carbine Upper Build UPK48 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-48-AR300BLKC/UPK-48-AR300BLKC%20530-1000x1000.jpg "AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' Keymod Handguard option | Carbine Upper Build UPK48 [ASSEMBLED]")
![AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' Keymod Handguard option | Carbine Upper Build UPK48 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-48-AR300BLKC/1a-1000x1000.png "AR 300 Blackout 16'' Barrel W/ 10'' 12'' 15'' Keymod Handguard option | Carbine Upper Build UPK48 [ASSEMBLED]")
-42 %
FKM-SBNV2 | Handguard
OptionAR-15 Ultra Slim Keymod Handguard 10"
12’’ 15"16" .300 Blackout 1:8 Twist | Pistol Gas
System| Parkerized | Made in U.S.A.AR-10 .308 A2 Style Birdcage Muzzle Brake
W/Crush WasherAR-15 Mil-Spec Uppe..
$279.99 $479.99
![AR 300 BLACKOUT 7'' BARREL W/ 7'' M-LOK SUPER SLIM Free Float Handguard | Pistol Upper Build UPK47 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-47-AR300BLKP/1A-1000x1000.png "AR 300 BLACKOUT 7'' BARREL W/ 7'' M-LOK SUPER SLIM Free Float Handguard | Pistol Upper Build UPK47 [ASSEMBLED]")
![AR 300 BLACKOUT 7'' BARREL W/ 7'' M-LOK SUPER SLIM Free Float Handguard | Pistol Upper Build UPK47 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-47-AR300BLKP/1a-1000x1000.jpg "AR 300 BLACKOUT 7'' BARREL W/ 7'' M-LOK SUPER SLIM Free Float Handguard | Pistol Upper Build UPK47 [ASSEMBLED]")
-49 %
AR-15 7" M-LOK SUPER SLIM FREE FLOAT HANDGUARD WITH STEEL BARREL NUT | MADE IN USABCA 7.5" 300 AAC Blackout Pistol barrel
| Made in U.S.A. AR-10 .308 A2 Style Birdcage Muzzle Brake
W/Crush WasherAR-15 Mil-Spec Upper Receiver | Made in U.S.A..
$249.99 $489.99
![AR 300 BLACKOUT 7.5'' BARREL W/ 7'' M-LOK Handguard | Pistol Upper Build UPK57 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-57-AR300BLKP/1a-1000x1000.png "AR 300 BLACKOUT 7.5'' BARREL W/ 7'' M-LOK Handguard | Pistol Upper Build UPK57 [ASSEMBLED]")
![AR 300 BLACKOUT 7.5'' BARREL W/ 7'' M-LOK Handguard | Pistol Upper Build UPK57 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-57-AR300BLKP/AR-300-BLACKOUT-7-5-BARREL-W-7-M-LOK-Handguard-Pistol-Upper-Build-UPK57-ASSEMBLED(2)-1000x1000.jpg "AR 300 BLACKOUT 7.5'' BARREL W/ 7'' M-LOK Handguard | Pistol Upper Build UPK57 [ASSEMBLED]")
-46 %
AR-15
7" Combat Modular M-LOK Handguard "C" Cut | BlackBCA 7.5" 300 AAC Blackout Pistol barrel
| Made in U.S.A. AR-10 .308 A2 Style Birdcage Muzzle Brake
W/Crush WasherAR-15 Mil-Spec Upper Receiver | Made in U.S.A.AR-..
$269.99 $499.99
![AR 300AAC Blackout 16'' Barrel 15'' Keymod Handguard | Carbine Upper Build UPK19 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-19-AR300BLKC/1a-1000x1000.png "AR 300AAC Blackout 16'' Barrel 15'' Keymod Handguard | Carbine Upper Build UPK19 [ASSEMBLED]")
![AR 300AAC Blackout 16'' Barrel 15'' Keymod Handguard | Carbine Upper Build UPK19 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-19-AR300BLKC/2-1000x1000.jpg "AR 300AAC Blackout 16'' Barrel 15'' Keymod Handguard | Carbine Upper Build UPK19 [ASSEMBLED]")
-47 %
AR-15/47/9/300AAC Clamp-on Rail System 15"BCA 16" 300 AAC Blackout | Parkerized |
Made in U.S.A. AR-10 / LR-308 Flash Can Muzzle Brake
Aluminum V.2AR-15 Mil-Spec Upper Receiver | Made in U.S.A.AR-15 Tactical Rifle Charging Handle AssemblyAR-..
$279.99 $529.99
![AR 300 Blackout 16'' Barrel W/ 10" 12" 16" Free Float Handguard | Carbine Upper Build UPK49 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-49-AR300BLKC/1a-1000x1000.png "AR 300 Blackout 16'' Barrel W/ 10\" 12\" 16\" Free Float Handguard | Carbine Upper Build UPK49 [ASSEMBLED]")
![AR 300 Blackout 16'' Barrel W/ 10" 12" 16" Free Float Handguard | Carbine Upper Build UPK49 [ASSEMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-49-AR300BLKC/AR-300-Blackout-16-Barrel-W-10-12-16-Free-Float-Handguard-Carbine-Upper-Build-U49-ASSEMBLED(2)-1000x1000.jpg "AR 300 Blackout 16'' Barrel W/ 10\" 12\" 16\" Free Float Handguard | Carbine Upper Build UPK49 [ASSEMBLED]")
-33 %
FAR | Handguard OptionAR-15 Free Float Quad Rail Handguard 10"
12" 16"16" .300 Blackout 1:8 Twist | Pistol Gas
System| Parkerized | Made in U.S.A.AR-10 .308 A2 Style Birdcage Muzzle Brake
W/Crush WasherAR-15 Mil-Spec Upper Receiver ..
$319.99 $479.99
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