OTsupplier Inc will be closed on Monday, May 27th for Memorial Day. Orders placed during holiday weekend will be processed on Tuesday, May 28th.

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AR 9mm 4.5 Barrel w/ 4" Quad Rail Upper Build (223UP, ARFA, DC223, FAR04, MBR05, TL223, BR9-4)

Includes: Upper receiver Ejection Port/Dust Cover Assembly Forward Assist Assembly 4.5" .9mm N..

$205.60 $169.95

AR 9mm 7.5 Barrel w/ 4" Quad Rail Upper Build (223UP, ARFA, DC223, FAR04, MBR05, TL223, BR9-7)

Includes: Upper receiver Ejection Port/Dust Cover Assembly Forward Assist Assembly 7.5" .9mm ..

$205.60 $169.95

AR-15 Free Float Handguard Pistol Assembled Build - 7.5" .223 Wylde

Our Black Nitride AR-15 Upper Build (Mil-Spec) comes fully assembled and includes all the components..

$311.38 $249.95

AR-15 Rifle Kit with LPK BCG Upper Barrel Stock Handguard Charging Handle Dust Cover Forward Assist Gas Block Gas Tube

This is an unassembled kit for building a basic functioning AR-15 rifle. The lower receiver is not i..

$406.40 $349.95

AR10 .308 Rifle Upper Build with 16" Barrel, BCG, Upper and 10" Handguard

Gas tube: Mid Length Gas SystemGas Block: .750 Low Profile Steel Gas Block Muzzle: A2 Style Muz..

$569.16 $449.95

AR 9mm Custom Bolt Carrier Group- Black Nitride

Features:Ultra Hard Black Nitride FinishFull Heat Treated 8620 Steel Precision Custom cut carri..

$149.99 $109.95

AR-15 16" 5.56 NATO 1:9 Rifle Kit w/ Magpul Furniture, LPK, 80% Lower, and Free 10 Rounds Magazine

Includes:AR-15 Magpul MOE SL Carbine Mil-Spec Stock FDE (Made In USA)AR-15 Magpul MOE M-LOK Handguar..

$570.21 $513.19

AR-15 16" 5.56 NATO 1:9 Rifle Kit w/ OD Green Magpul Furniture, LPK and 80% Lower

Includes:AR-15 Magpul MOE SL Carbine Mil-Spec Stock FDE (Made In USA)AR-15 Magpul MOE M-LOK Handguar..

$471.17 $424.05

AR-15 16" 5.56 NATO 1:9 w/ Magpul MLOK OD GREEN Handguard

Every Upper Build is Test Fired Before Shipment To Guarantee Performance. We do not guarantee c..

$237.31 $213.58

AR-15/M16 Bolt Carrier Group Assembly - Black Nitride (USA)

Each of our Mil-Spec Bolt Carrier Group Assemblies is made in the U.S.A. and feature full-auto capab..

$119.95 $74.95

Charging Handle Assembly - Standard Latch

The OT Supplier AR-15 charging handle assembly is everything you need and nothing you don't. Made to..

$14.95 $10.95

Charging Handle Assembly - Standard Latch - Packaged

The OT Supplier AR-15 charging handle assembly in retail packaging is everything you need and nothin..

$19.95 $12.95