Olympic Arms AR-15 A3 Upper Receiver Assembly 223 Remington 20" Bull Barrel
- Upper Receiver Type: A3 Flat-Top
- Barrel Length: 20" Bull
- Barrel Contour: Not listed by manufacturer
- Barrel Material: Broach Cut 416 Stainless Steel
- Muzzle Thread Pattern: Target Crowned Muzzle
- Chrome Lined: No
- Barrel Finish: Black Matte
- Twist Rate: 1 in 10"
- Chamber: 223 Remington
- M4 Feed Ramps: Yes
- Muzzle Device: None-Crown
- Gas System Length: Rifle, Single Rail Gas Block
- Gas Block Diameter: Not listed by manufacturer
- Handguard: Aluminum Tubular Free Floating
- Sights: Front Gas Block with Picatinny Rails
- Bolt Carrier Assembly Included: Yes
- Bolt Carrier Type: Commercial
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Product ships from MidwayUSA, separate from any other products on your order due to its size. Products that are Shipped Alone incur separate "Per Order" and "Per Pound" shipping charges.
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