1-800-741-0015

0
Help
Brownells Brownells

M4 Upper Receiver

Best Sellers
  1. Vis Upper Receiver - Vis-3 Rifle Upper
    Vis Upper Receiver - Vis-3 Rifle Upper
    Item#:
    100-004-948  
    Our Price:
    $645.95
    Description:
    Rock Solid Integrated Receiver & Railed Handguard Ensures Alignment Of Rails
    Quick View
  2. Ar-15/M16 A4 Upper Receiver - A4 Upper Receiver Assembly
    Ar-15/M16 A4 Upper Receiver - A4 Upper Receiver Assembly
    Item#:
    100-005-851  
    Our Price:
    $129.00
    Description:
    Flattop upper receiver is forged from high-grade 7075 T6 aluminum for strength and durability, then final machined to USGI or better tolerances for building a custom AR rifle. Hardcoat anodized finish minimizes abrasion wear. M4 feed ramp cuts ensure reliable feeding. 13-slot Picatinny rail provides a full 5" for mounting an optic, while the etched position numbers in rail slots ensure repeatability of mounting position. Comes with forward assist and ejection port cover fully assembled and installed. Mfg: Daniel Defense SPECS: 7075 T6 aluminum, Type III hardcoat anodized, matte black. .250" dia. pivot/takedown pin holes.
    Quick View
  3. Ar-15/M16 Modular Upper Receiver - Mur Upper Receiver
    Ar-15/M16 Modular Upper Receiver - Mur Upper Receiver
    Item#:
    100-004-042  
    Our Price:
    $199.99
    Description:
    Extra Metal For Superb Strength & Rigidity; Mil-Spec Dimensions For Compatibility
    Quick View
  4. Vis Upper Receiver - Vis-2a Ext. Mid-Length Upper
    Vis Upper Receiver - Vis-2a Ext. Mid-Length Upper
    Item#:
    100-004-947  
    Our Price:
    $617.45
    Description:
    Rock Solid Integrated Receiver & Railed Handguard Ensures Alignment Of Rails
    Quick View
  5. Vis Upper Receiver - Vis-1 Carbine Upper
    Vis Upper Receiver - Vis-1 Carbine Upper
    Item#:
    100-004-949  
    Our Price:
    $569.95
    Description:
    Rock Solid Integrated Receiver & Railed Handguard Ensures Alignment Of Rails
    Quick View
  6. Vis Upper Receiver - Vis-2 Mid-Length Upper
    Vis Upper Receiver - Vis-2 Mid-Length Upper
    Item#:
    100-004-950  
    Our Price:
    $598.45
    Description:
    Rock Solid Integrated Receiver & Railed Handguard Ensures Alignment Of Rails
    Quick View

View All M4 Upper Receiver »

m4 upper receiver & Accessories

Related Items
  1. Carry Handle Upper Receiver, .223/5.56 - Carry Handle Upper Receiver, 9mm
    Carry Handle Upper Receiver, .223/5.56 - Carry Handle Upper Receiver, 9mm
    Item#:
    160-302-052  
    Our Price:
    $189.79
    Description:
    Stripped Uppers In A2 & Flattop Styles; Genuine Factory Parts
    Quick View
  2. Upper Receiver Kit
    Upper Receiver Kit
    Item#:
    430-000-520  
    Our Price:
    $109.99
    Description:
    High-quality, mil-spec parts from a respected name in precision firearms for more than 75 years, now a premier maker of complete AR-15 rifles. Replace worn or damaged parts to return a service rifle to factory specs or use in building a precision custom rifle that meets your exact requirements. Complete, prepackaged kits include all the parts you need for specific subassemblies. Saves time and money—no need to hunt down each item individually. Includes A2 rear sight kit, forward assist assembly, and ejection port cover. Mfg: High Standard SPECS: Steel, parkerized, dark gray finish; aluminum, hardcoat anodized, matte black finish; or spring steel.
    Quick View
  3. Ar-15 Stripped Upper Receiver - Stripped A2 Upper Receiver
    Ar-15 Stripped Upper Receiver - Stripped A2 Upper Receiver
    Item#:
    231-000-152  
    Our Price:
    $99.99
    Description:
    Fully machined and finished, military style uppers ready for you to install your choice of barrel, carrier, bolt, forearm, and lower to build a custom AR-15. Choose from rugged A2 carry handle style, complete with cuts for mounting A2 rear sight, or A3 flattop with M4-type feed ramp cuts and Picatinny accessory rail for mounting a scope, holographic sight, or flip-up “iron” sights. Both models feature shell deflector, forward assist housing, and provisions for installing an ejection port cover. Precision machined from a premium-grade aluminum forging and hardcoat anodized for extra strength, with a tough, scratch-resistant Teflon coating. Mfg: Dpms SPECS: Aluminum, hard anodized, Teflon coated, matte black. Fits mil-spec AR-15 lower receiver with .250” pivot pins.
    Quick View
  4. Carry Handle Upper Receiver, .223/5.56 - Carry Handle Upper Receiver, 7.62x39
    Carry Handle Upper Receiver, .223/5.56 - Carry Handle Upper Receiver, 7.62x39
    Item#:
    160-302-054  
    Our Price:
    $149.99
    Description:
    Stripped Uppers In A2 & Flattop Styles; Genuine Factory Parts
    Quick View
  5. Carry Handle Upper Receiver, .223/5.56
    Carry Handle Upper Receiver, .223/5.56
    Item#:
    160-302-051  
    Our Price:
    $249.99
    Description:
    Stripped Uppers In A2 & Flattop Styles; Genuine Factory Parts
    Quick View
  6. Ar-15/M16 Complete Gas Piston Upper Receiver - Gas Piston Upper Receiver, Midlength
    Ar-15/M16 Complete Gas Piston Upper Receiver - Gas Piston Upper Receiver, Midlength
    Item#:
    100-009-248  
    Our Price:
    $649.99
    Description:
    Ready To Install To Make A Reliable, Clean Running Piston Carbine Or Pistol
    Quick View

View All M4 Upper Receiver & Accessories »


Ammunition
  1. Hornady .50 Bmg Match Ammunition - Hornady Match Ammo .50 Bmg 750gr Amax
    Hornady .50 Bmg Match Ammunition - Hornady Match Ammo .50 Bmg 750gr Amax
    Item#:
    100-203-106  
    Our Price:
    $59.99
    Description:
    Hornady match rifle ammunition is loaded with the most accurate, consistent match bullets in the world: our sophisticated boat tail hollow point match bullets and our technologically advanced A-MAX Match bullets. Mfg: Hornady
    Quick View
  2. Wolf Ammo .308win 145gr Fmj 20rd/Bx - .308win 145gr 20rd/Bx
    Wolf Ammo .308win 145gr Fmj 20rd/Bx - .308win 145gr 20rd/Bx
    Item#:
    105-000-185  
    Our Price:
    $7.99
    Description:
    Caliber: .308 (7.62X51) Case Type: Steel Projectile Type: Full Metal Jacket (FMJ) 20RD/BX Mfg: Wolf
    Quick View
  3. Winchester Partition Gold Shotgun Ammunition - Winchester Partition Gold 20ga 2-3/4 260gr Sabot Sl
    Winchester Partition Gold Shotgun Ammunition - Winchester Partition Gold 20ga 2-3/4 260gr Sabot Sl
    Item#:
    105-202-681  
    Our Price:
    $12.19
    Description:
    Extremely accurate, Partition Gold ammunition provides deep, driving penetration, regardless of barrel length and is designed for consistent, dramatic bullet expansion. High velocity for massive knock down power and deep penetration for proven lethality. For use in fully rifled barrels only. Mfg: Winchester
    Quick View
  4. Winchester Partition Gold Shotgun Ammunition - Winchester Partition Gold 12ga 2-3/4 385gr Sabot Sl
    Winchester Partition Gold Shotgun Ammunition - Winchester Partition Gold 12ga 2-3/4 385gr Sabot Sl
    Item#:
    105-202-679  
    Our Price:
    $12.19
    Description:
    Extremely accurate, Partition Gold ammunition provides deep, driving penetration, regardless of barrel length and is designed for consistent, dramatic bullet expansion. High velocity for massive knock down power and deep penetration for proven lethality. For use in fully rifled barrels only. Mfg: Winchester
    Quick View
  5. Winchester Partition Gold Shotgun Ammunition - Winchester Partition Gold 20ga 3 260gr Sabot Slug
    Winchester Partition Gold Shotgun Ammunition - Winchester Partition Gold 20ga 3 260gr Sabot Slug
    Item#:
    105-202-682  
    Our Price:
    $13.79
    Description:
    Extremely accurate, Partition Gold ammunition provides deep, driving penetration, regardless of barrel length and is designed for consistent, dramatic bullet expansion. High velocity for massive knock down power and deep penetration for proven lethality. For use in fully rifled barrels only. Mfg: Winchester
    Quick View
  6. Winchester Partition Gold Shotgun Ammunition - Winchester Partition Gold 12ga 3 385gr Sabot Slug
    Winchester Partition Gold Shotgun Ammunition - Winchester Partition Gold 12ga 3 385gr Sabot Slug
    Item#:
    105-202-680  
    Our Price:
    $13.79
    Description:
    Extremely accurate, Partition Gold ammunition provides deep, driving penetration, regardless of barrel length and is designed for consistent, dramatic bullet expansion. High velocity for massive knock down power and deep penetration for proven lethality. For use in fully rifled barrels only. Mfg: Winchester
    Quick View

View All Ammunition »

Ready to buy M4 Upper Receiver? Brownells.com carries the widest selection at the best prices on the web. Here, you'll find 150 M4 Upper Receiver and M4 Upper Receiver & Accessories, the best available, at prices from $6.99 to $2,599.99. As the internet's top seller of gun parts and gunsmith tools, we're able to bring you the best products, excellent prices, and reliable customer service every day. We're so convinced you'll be happy with all our M4 Upper Receiver that we offer a 100% customer satisfaction guarantee. If you're not completely satisfied with your purchase let us know so we can make it right. Our entire inventory of M4 Upper Receiver is online, so it's easy to find what you need. When you're ready to order, use our simple cart or call us toll-free at 1-800-741-0015. We're passionate about meeting all your needs for gun parts and gunsmith tools, and we're confident you'll find what you need here. If you have any questions, don't hesitate to give us a call!