![AR-40/ 40 S&W 8" Barrel 7" Handguard M Lok | PISTOL UPPER BUILD UPK110 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-110-AR40P/0%2013%20UPK-110-AR40P-1000x1000.jpg "AR-40/ 40 S&W 8\" Barrel 7\" Handguard M Lok | PISTOL UPPER BUILD UPK110 [ASSMBLED]")
![AR-40/ 40 S&W 8" Barrel 7" Handguard M Lok | PISTOL UPPER BUILD UPK110 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-110-AR40P/UPK-110-AR40P-BLK-1000x1000.png "AR-40/ 40 S&W 8\" Barrel 7\" Handguard M Lok | PISTOL UPPER BUILD UPK110 [ASSMBLED]")
-57 %
AR-40/ 40 S&W 8"
1:16 Twist Black Nitride Finish - Made in USAAR-15 Charging Handle | Latch 01AR-15 Ejection Port Cover
| Dust Cover Assembly- Jason Happy CamperAR-10 / LR-308 Compact
Pocket Compensator Muzzle Brakes COLOR OPTION:BLACKAR-15/47/9/300 Custom Lightweight Side Cut Billet Upp..
$249.99 $579.99
![AR-40/ 40 S&W 8" Barrel 7" Handguard | PISTOL UPPER BUILD UPK279 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-279-AR40P/0%2015%20UPK-279-AR40P-1000x1000.jpg "AR-40/ 40 S&W 8\" Barrel 7\" Handguard | PISTOL UPPER BUILD UPK279 [ASSMBLED]")
![AR-40/ 40 S&W 8" Barrel 7" Handguard | PISTOL UPPER BUILD UPK279 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-279-AR40P/UPK-279-AR40P-BLK-1000x1000.png "AR-40/ 40 S&W 8\" Barrel 7\" Handguard | PISTOL UPPER BUILD UPK279 [ASSMBLED]")
-57 %
AR-40/ 40 S&W 8"
1:16 Twist Black Nitride Finish - Made in USAAR-15 Mil-Spec Upper
Receiver - Made In U.S.AAR-15 7'' Free Float
M-LOK Handguard with "C" Hybrid Cut - ABC Logo - Made In USAAR-10 / LR-308 Linear
Hexagon Multi Ported Muzzle Break| Made in U.S.A COLOR OPTIONBLACKAR-15 Charg..
$249.99 $579.99
-53 %
Handguard OptionAR-15 10'' Angle CutClamp on M-LOK Handguard - Made in U.S.AAR-15 12'' Angle CutClamp on M-LOK Handguard - Made in U.S.AAR-15 15'' Angle CutClamp on M-LOK Handguard - Made in U.S.AAR-15 10'' M-LOK SuperSlim Free Float Handguard with Steel Barrel Nut - Made in U.S.AAR-15 12'' M-LOK Su..
$289.99 $619.99
-53 %
AR-40/ 40 S&W 8"
1:16 Twist Black Nitride Finish - Made in USAAR-15 Mil-Spec Upper
Receiver - Made In U.S.AAR-15 7'' Free Float
M-LOK Handguard with "C" Hybrid Cut - ABC Logo - Made In USAAR-10 / LR-308 Linear
Hexagon Multi Ported Muzzle Break| Made in U.S.AAR-9mm Pistol Buffer Tube
Kit W/ ..
$309.99 $659.99
-53 %
AR-40/ 40 S&W 8"
1:16 Twist Black Nitride Finish - Made in USAAR-15 Billet Stripped Mod
1 Upper Receiver - Made In U.S.AAR-15 Charging Handle|
Witch Hat and BroomAR-15 Ejection Port Cover
| Dust Cover Assembly- Witch on the moonAR-10 / LR-308 A2 Style
Birdcage Muzzle BrakePistol StabilizerA..
$329.99 $699.99
-55 %
AR-40/ 40 S&W 8"
1:16 Twist Black Nitride Finish - Made in USAAR-15 Charging Handle | Latch 01AR-15 Ejection Port Cover
| Dust Cover Assembly- Jason Happy CamperAR-10 / LR-308 Compact
Pocket Compensator Muzzle BrakesAR-15 Lower Receiver
Parts Kit | Without Grip & ScrewAR Standard A2 Pist..
$289.99 $649.99
-56 %
AR-40/ 40 S&W 8"
1:16 Twist Black Nitride Finish - Made in USAAR-15 Charging Handle |
Latch 01AR-15 Ejection Port Cover
| Dust Cover Assembly- Beware Skull and CrossbonesForward Assist Complete
Mil Spec AssemblyAR-10 / LR-308 A2 StyleBirdcage Muzzle BrakeAR-9mm Pistol Buffer Tube
Kit W/ Foa..
$279.99 $629.99
-56 %
Out Of Stock
AR-40/ 40 S&W 4" 1:16 Twist Black Nitride Finish - Madein USAAR-15 Mil-Spec UpperReceiver - Made In U.S.AAR-15 4'' Combat ModularM-Lok Handguard "C" Cut - BlackAR-10 / LR-308 A2 StyleBirdcage Muzzle BrakeAR-9mm Pistol Buffer Tube Kit W/ Foam Pad - 7oz BufferAR-15 Lower ReceiverParts Kit | Withou..
$279.99 $629.99
-53 %
AR-40/ 40 S&W 4" 1:16 Twist Black Nitride Finish - Made
in USAAR-15 Billet Stripped Mod
1 Upper Receiver - Made In U.S.AAR-15 Charging Handle|
Spider and WebAR-15 Ejection Port Cover
| Dust Cover Assembly- Spider WebAR-10 / LR-308 A2 StyleBirdcage Muzzle BrakeAR-9mm Pistol Buffer Tube Kit W/..
$329.99 $699.99
-55 %
Out Of Stock
AR-40/ 40 S&W 4" 1:16 Twist Black Nitride Finish - Made
in USAAR-15 Charging Handle | Latch 01AR-15 Ejection Port Cover | Dust Cover Assembly- Skull Stay SpookyAR-10 / LR-308 A2 Style Birdcage Muzzle BrakeAR-9mm Pistol Buffer Tube Kit W/ Foam Pad - 7oz BufferAR-15 Lower Receiver Parts Kit W/ Ov..
$289.99 $649.99
-56 %
Out Of Stock
AR-40/ 40 S&W 4"
1:16 Twist Black Nitride Finish - Made in USAAR-15 Charging Handle |
Latch 01AR-15 Ejection Port Cover
| Dust Cover Assembly- American Flag Laser EtchedForward Assist Complete
Mil Spec AssemblyAR-10 / LR-308Flash Can Muzzle Brake Aluminum V.2AR-15 Lower Receiver
Parts Kit&n..
$279.99 $629.99
![AR-40/ 40 S&W 8" Barrel 7" Handguard Option | PISTOL UPPER BUILD UPK278 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-278-AR40P/UPK-278-AR40P-MAIN-1000x1000.png "AR-40/ 40 S&W 8\" Barrel 7\" Handguard Option | PISTOL UPPER BUILD UPK278 [ASSMBLED]")
![AR-40/ 40 S&W 8" Barrel 7" Handguard Option | PISTOL UPPER BUILD UPK278 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-278-AR40P/UPK-278-AR40P-FML-TC-7-1000x1000.png "AR-40/ 40 S&W 8\" Barrel 7\" Handguard Option | PISTOL UPPER BUILD UPK278 [ASSMBLED]")
-55 %
AR-40/ 40 S&W 8"
1:16 Twist Black Nitride Finish - Made in USAAR-15 Billet Stripped Mod
1 Upper Receiver - Made In U.S.AAR-15 Charging Handle|
Witch Hat and BroomAR-15 Ejection Port Cover
| Dust Cover Assembly- Witch on the moonAR-10 / LR-308 A2 Style
Birdcage Muzzle Brake HANDGU..
$269.99 $599.99
![AR-40/ 40 S&W 8" Barrel 7" Handguard M Lok | PISTOL UPPER BUILD UPK109 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-109-AR40P/UPK-109-AR40P-2025----1000x1000.png "AR-40/ 40 S&W 8\" Barrel 7\" Handguard M Lok | PISTOL UPPER BUILD UPK109 [ASSMBLED]")
![AR-40/ 40 S&W 8" Barrel 7" Handguard M Lok | PISTOL UPPER BUILD UPK109 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-109-AR40P/UPK-109-AR40P-2025-BLK-1000x1000.png "AR-40/ 40 S&W 8\" Barrel 7\" Handguard M Lok | PISTOL UPPER BUILD UPK109 [ASSMBLED]")
-58 %
AR-40/ 40 S&W 8"
1:16 Twist Black Nitride Finish - Made in USAAR-15 Charging Handle |
Latch 01AR-15 Ejection Port Cover
| Dust Cover Assembly- Beware Skull and CrossbonesForward Assist Complete
Mil Spec AssemblyAR-10 / LR-308 A2 StyleBirdcage Muzzle Brake COLOR OPTION:BLACKAR-15 Mil-Spe..
$229.99 $549.99
![AR-40/ 40 S&W 4" Barrel 4" Handguard | PISTOL UPPER BUILD UPK120 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-120-AR40P/0%200%2025-1000x1000.png "AR-40/ 40 S&W 4\" Barrel 4\" Handguard | PISTOL UPPER BUILD UPK120 [ASSMBLED]")
![AR-40/ 40 S&W 4" Barrel 4" Handguard | PISTOL UPPER BUILD UPK120 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-120-AR40P/UPK-120-AR40P-BLK-1000x1000.png "AR-40/ 40 S&W 4\" Barrel 4\" Handguard | PISTOL UPPER BUILD UPK120 [ASSMBLED]")
-58 %
Out Of Stock
AR-40/ 40 S&W 4" 1:16 Twist Black Nitride Finish - Madein USAAR-15 Mil-Spec UpperReceiver - Made In U.S.AAR-15 4'' Combat ModularM-Lok Handguard "C" Cut - BlackAR-10 / LR-308 A2 StyleBirdcage Muzzle Brake COLOR OPTIONBLACKAR-15 Charging Handle |Latch 01AR-15 Ejection Port Cover| Dust Cover ..
$229.99 $549.99
![AR-40/ 40 S&W 4" Barrel 4" Handguard Option | PISTOL UPPER BUILD UPK119 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-119-AR40P/0%200%2025%20z-1000x1000.png "AR-40/ 40 S&W 4\" Barrel 4\" Handguard Option | PISTOL UPPER BUILD UPK119 [ASSMBLED]")
![AR-40/ 40 S&W 4" Barrel 4" Handguard Option | PISTOL UPPER BUILD UPK119 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-119-AR40P/0%202%2025%20%20z-1000x1000.png "AR-40/ 40 S&W 4\" Barrel 4\" Handguard Option | PISTOL UPPER BUILD UPK119 [ASSMBLED]")
-57 %
AR-40/ 40 S&W 4" 1:16 Twist Black Nitride Finish - Made
in USAAR-15 Billet Stripped Mod
1 Upper Receiver - Made In U.S.AAR-15 Charging Handle|
Spider and WebAR-15 Ejection Port Cover
| Dust Cover Assembly- Spider WebAR-10 / LR-308 A2 StyleBirdcage Muzzle Brake HANDGUARD OPTIONAR-15 Angl..
$259.99 $599.99
![AR-40/ 40 S&W 4" Barrel 4" Handguard M Lok | PISTOL UPPER BUILD UPK118 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-118-AR40P/UPK-118-AR40P-1000x1000.png "AR-40/ 40 S&W 4\" Barrel 4\" Handguard M Lok | PISTOL UPPER BUILD UPK118 [ASSMBLED]")
![AR-40/ 40 S&W 4" Barrel 4" Handguard M Lok | PISTOL UPPER BUILD UPK118 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-118-AR40P/UPK-118-AR40P-BLK-1000x1000.png "AR-40/ 40 S&W 4\" Barrel 4\" Handguard M Lok | PISTOL UPPER BUILD UPK118 [ASSMBLED]")
-58 %
Out Of Stock
AR-40/ 40 S&W 4" 1:16 Twist Black Nitride Finish - Made
in USAAR-15 Charging Handle | Latch 01AR-15 Ejection Port Cover | Dust Cover Assembly- Skull Stay SpookyAR-10 / LR-308 A2 Style Birdcage Muzzle Brake COLOR OPTION:BLACKAR-15/47/9/300 Custom Lightweight Side Cut Billet Upper Receiver -..
$239.99 $569.99
![AR-40/ 40 S&W 4" Barrel 4" Handguard M Lok | PISTOL UPPER BUILD UPK117 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-117-AR40P/0%200%2025-1000x1000.png "AR-40/ 40 S&W 4\" Barrel 4\" Handguard M Lok | PISTOL UPPER BUILD UPK117 [ASSMBLED]")
![AR-40/ 40 S&W 4" Barrel 4" Handguard M Lok | PISTOL UPPER BUILD UPK117 [ASSMBLED]](https://outdoorsportsusa.com/image/cache/catalog/demo/UPK-117-AR40P/1%201%2025-1000x1000.png "AR-40/ 40 S&W 4\" Barrel 4\" Handguard M Lok | PISTOL UPPER BUILD UPK117 [ASSMBLED]")
-58 %
Out Of Stock
AR-40/ 40 S&W 4"
1:16 Twist Black Nitride Finish - Made in USAAR-15 Charging Handle |
Latch 01AR-15 Ejection Port Cover
| Dust Cover Assembly- American Flag Laser EtchedForward Assist Complete
Mil Spec AssemblyAR-10 / LR-308Flash Can Muzzle Brake Aluminum V.2 COLOR OPTION:BLACKAR-15 Mil..
$229.99 $549.99
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