null
OUR STORES
Government sales & GSA

Government purchasing

GSA contract
47QSMS26D001X
CAGE code
1JFW6
Tax ID
45-4102112
SAM UEI
NSEVGMJ1FHN5
Government sales page
Proudly US-based. A proud all-American team serving you for over 35 years.

Upper Receivers

Upper Receivers

  • Product
  • In cart
  • Quantity
  • Price
  • Subtotal
  • Out of stock
    On Sale
    Complete MR556 A4 Upper Receiver/Barrel Assembly— HK 16.5 inch cold-hammer forged barrel, upper receiver with forward assist, extended convertible charging handle, HK Free Floating Rail System handguard

    HK 51000385 MR556 A4 11.5" Complete Upper Receiver Kit

    Heckler & Koch

    Was: $1,999.98
    Sale Price: $1,799.98
    Save:
    Caliber
    5.56 NATO
    Barrel length
    11.50"
    Thread pitch
    1/2x28
    Twist rate
    1:7"
    Handedness
    Ambidextrous
    Mount
    M-LOK
    This kit includes a complete upper receiver/barrel assembly, allowing Mil-Spec 5.56mm AR-style rifles to be retrofitted to HK’s piston and pusher rod system. This system utilizes a piston and a...
    Was: $1,999.98
    Sale Price: $1,799.98
    Save:
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Was: $1,999.98
    Sale Price: $1,799.98
    Save:
    Subtotal:
    Out of stock
  • Out of stock
    On Sale
    Colt LE6920CK 16.1" Complete Upper Receiver

    Colt LE6920CK 16.1" Complete Upper Receiver

    Colt

    Was: $879.98
    Sale Price: $599.98
    Save:
    Platform
    AR-15
    The Colt LE6920CK Upper Receiver Assembly feature's Colt's upper receiver. This upper receiver allows for a free-floated barrel and also features a gas-block mounted fixed front sight post with...
    Was: $879.98
    Sale Price: $599.98
    Save:
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Was: $879.98
    Sale Price: $599.98
    Save:
    Subtotal:
    Out of stock
  • Out of stock
    On Sale
    Colt M5 10.3" Complete Upper assembly

    Colt M5 10.3" Complete Upper assembly

    Was: $1,299.98
    Sale Price: $889.98
    Save:
    Caliber
    5.56mm
    Barrel length
    10.3"
    Thread pitch
    1/2x28
    Twist rate
    1:7
    Handedness
    Ambidextrous
    Mount
    Picatinny
    The Colt CM556-10H-CK Upper Assembly is used on the M5 CQC Close Quarter Combat series of rifles. Maximum performance and ergonomics are at the forefront of the M5's design; utilizing a proven...
    Was: $1,299.98
    Sale Price: $889.98
    Save:
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Was: $1,299.98
    Sale Price: $889.98
    Save:
    Subtotal:
    Out of stock
  • Out of stock
    Colt LE6943CK Monolithic Complete Upper Receivers 11.5" Bbl

    Colt LE6943CK Monolithic Complete Upper Receivers 11.5" Bbl

    Colt

    Price: $999.98
    Caliber
    5.56mm
    Barrel length
    11.5"
    Platform
    AR-15
    Origin
    Made in USA
    The Colt LE6943CK Monolithic Upper Assembly feature's Colt's law enforcement fully unitized URG.  In addition to an uninterrupted full-length front rail, this upper receiver allows for a free-floated...
    Price: $999.98
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $999.98
    Subtotal:
    Out of stock
  • Out of stock
    Colt LE6945CK Complete Upper Receiver Kits 10.5" Bbl w/Integrated Rail

    Colt LE6945CK Complete Upper Receiver Kits 10.5" Bbl w/Integrated Rail

    Colt

    Price: $1,099.98
    Caliber
    5.56mm
    Barrel length
    11.5"
    Platform
    AR-15
    Origin
    Made in USA
    The Colt LE6943CK Monolithic Upper Assembly feature's Colt's new monolithic upper receiver. In addition to an uninterrupted full-length front rail, this upper receiver allows for a free-floated...
    Price: $1,099.98
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $1,099.98
    Subtotal:
    Out of stock
  • Out of stock
    Caracal CAR816 A2 Short Stroke Piston 11.5" Complete Upper 5.56x45mm

    Caracal CAR816 A2 Short Stroke Piston 11.5" Complete Upper 5.56x45mm

    CARACAL

    Price: $1,129.00
    Platform
    AR-15
    CAR816 A2 11.5″ COMPLETE UPPER   • 5.56x45mm NATO Gas Operated Short Stroke Piston with 3 Position Adjustable gas key • Built to exceed NATO test
    Price: $1,129.00
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $1,129.00
    Subtotal:
    Out of stock
  • On Sale
    Colt LE6920EPR-CK Complete Upper Receiver 16" Bbl.
    Add to cart

    Colt LE6920EPR-CK Complete Upper Receiver 16" Bbl.

    Colt

    Was: $1,049.00
    Sale Price: $889.98
    Save:
    Platform
    AR-15
    Built for the demanding use of those who protect our communities every day, the Colt Enhanced Patrol Rifle (EPR) is the next evolution in the world's most dependable, thoroughly field-tested patrol...
    Was: $1,049.00
    Sale Price: $889.98
    Save:
    Add to cart Quick view
    In cart: 0
    Quantity:
    Price:
    Was: $1,049.00
    Sale Price: $889.98
    Save:
    Subtotal:
    Add to cart
  • Out of stock
    On Sale
    HK MR556 A4 16.5" Complete Upper Receiver Kit

    HK MR556 A4 16.5" Complete Upper Receiver Kit

    Heckler & Koch

    Was: $1,999.98
    Sale Price: $1,849.98
    Save:
    Barrel length
    16.5"
    Thread pitch
    1/2x28
    Twist rate
    1:7"
    Handedness
    Ambidextrous
    Mount
    M-LOK
    Platform
    AR-15
    MR556 A4 16.5" UPPER RECEIVER KIT SKU#51000384 Complete MR556 A4 Upper Receiver/Barrel Assembly— HK 16.5 inch cold-hammer forged barrel, upper receiver with forward assist, extended convertibl
    Was: $1,999.98
    Sale Price: $1,849.98
    Save:
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Was: $1,999.98
    Sale Price: $1,849.98
    Save:
    Subtotal:
    Out of stock
  • Daniel Defense, DDM4V7 S Complete Upper Receiver Group, 556NATO, 11.5" Barrel, 1:7 Twist, Daniel Defense MFR 10" MLOK Handguard, Bolt Carrier Group, Charging Handle, Daniel Defense Vertical Grip, Black
    Add to cart

    Daniel Defense DDM4V7 S Complete Upper Receiver Group

    Daniel Defense

    Price: $1,244.00
    Barrel length
    11.5"
    Platform
    AR-15
    The DDM4 V7S AR15 style Upper Receiver Group features the MFR 10.0 M-LOK rail and is built around a free-floating, Cold Hammer Forged 11.5 inch barrel. The V7 S delivers optimal maneuverability,...
    Price: $1,244.00
    Add to cart Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $1,244.00
    Subtotal:
    Add to cart
  • Out of stock
    On Sale
    Colt LE6933CK Complete Upper Receiver 11.5" Bbl.

    Colt LE6933CK Complete Upper Receiver 11.5" Bbl.

    Colt

    Was: $899.00
    Sale Price: $749.98
    Save:
    Caliber
    5.56 NATO
    Barrel length
    11.5"
    Thread pitch
    1/2x28
    Twist rate
    1:7"
    Handedness
    Right-Hand
    Mount
    Polymer Handguard +1 more
    Colt's Manufacturing, Complete Upper, 223 Rem/556NATO, 11.5" Lightweight Barrel, Black Finish, A2 Fixed Front Sight, Magpul BUIS Rear Sight High quality components and precise manufacturing makes...
    Was: $899.00
    Sale Price: $749.98
    Save:
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Was: $899.00
    Sale Price: $749.98
    Save:
    Subtotal:
    Out of stock
  • Out of stock
    Colt 6930 5.56mm Upper Receiver Assembly | 10.3" Barrel

    Colt 6930 5.56mm Upper Receiver Assembly | 10.3" Barrel

    Colt

    Price: $895.00
    Platform
    AR-15
    The Colt 6930 Upper Assembly is used on the LE6930 and R0921CQB Commando model rifle. This upper receiver allows for a free-floated barrel while featuring a quad picatinny rail handguard and also...
    Price: $895.00
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $895.00
    Subtotal:
    Out of stock
  • Out of stock
    On Sale
    Geissele 08-315 URG-I Complete Upper Receiver  11.5" Barrel

    Geissele 08-315 URG-I Complete Upper Receiver  11.5" Barrel

    Geissele

    Was: $1,499.98
    Sale Price: $1,399.98
    Save:
    Platform
    AR-15
    Geissele Automatics, URG-I, Near Clone, Complete Upper Receiver, 556NATO, 11.5" Barrel, 1:7 Twist, Surefire 4 Prong Flash Hider, Desert Dirt Color 10.5" SMR MK16 M-LOK Free Float Handguard, Desert...
    Was: $1,499.98
    Sale Price: $1,399.98
    Save:
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Was: $1,499.98
    Sale Price: $1,399.98
    Save:
    Subtotal:
    Out of stock
  • Out of stock
    Caracal CAR816 A2 Short Stroke Piston 16" Complete Upper 5.56x45mm

    Caracal CAR816 A2 Short Stroke Piston 16" Complete Upper 5.56x45mm

    CARACAL

    Price: $1,129.00
    Barrel length
    16"
    Mount
    M-LOK
    Platform
    AR-15
    CAR816 A2 16″ COMPLETE UPPER   • 5.56x45mm NATO Gas Operated Short Stroke Piston with 3 Position Adjustable gas key • Built to exceed NATO test p
    Price: $1,129.00
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $1,129.00
    Subtotal:
    Out of stock
  • Out of stock
    Caracal CAR814 A2 Patrol 11.5" Complete Upper 5.56x45mm

    Caracal CAR814 A2 Patrol 11.5" Complete Upper 5.56x45mm

    CARACAL

    Price: $769.00
    Platform
    AR-15
    Length
    11.5"
    KEY FEATURES Built to exceed NATO test protocols including; Bore Obstruction and “Over the Beach” Testing. Caracal® Forged 7075 Hard Coat Anodized upper and lower receiver set Caracal® 9.1″...
    Price: $769.00
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $769.00
    Subtotal:
    Out of stock
  • On Sale
    The MK18 AR15 style Upper Receiver Group is unmatched in size, weight, and performance, and features the picatinny quad rail Daniel Defense provides to USSOCOM. The RIS II rail features a Bolt-Up System that has been rigorously tested prior to fielding by USSOCOM. The 10.3 inch Cold Hammer Forged barrel is the same length in use for the MK18 upper most commonly used for CQB operations. Its independently ambi GRIP-N-RIP Charging Handle accommodates left- and right-handed shooters. All Daniel Defense complete upper receiver groups come standard with an M16 profile bolt carrier group.
    Add to cart

    Daniel Defense 23-004-08013-011 MK18 5.56mm Complete Upper Receiver FDE

    Daniel Defense

    Was: $1,454.00
    Sale Price: $1,199.98
    Save:
    Platform
    AR-15
    Daniel Defense 2300408013011 MK18 Upper Group 5.56x45mm NATO 10.30" Black Phosphate Barrel, 7075-T6 Aluminum Black Anodized Receiver, Flat Dark Earth DD RISII MK18 Handguard for AR-15 The MK18 AR15...
    Was: $1,454.00
    Sale Price: $1,199.98
    Save:
    Add to cart Quick view
    In cart: 0
    Quantity:
    Price:
    Was: $1,454.00
    Sale Price: $1,199.98
    Save:
    Subtotal:
    Add to cart
  • Caracal CAR814 A2 Patrol 16" Complete Upper 5.56x45mm
    Add to cart

    Caracal CAR814 A2 Patrol 16" Complete Upper 5.56x45mm

    CARACAL

    Price: $769.00
    Platform
    AR-15
    Length
    16"
    KEY FEATURES Built to exceed NATO test protocols including; Bore Obstruction and “Over the Beach” Testing. Caracal® Forged 7075 Hard Coat Anodized upper and lower receiver set Caracal® 12″ Handguard...
    Price: $769.00
    Add to cart Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $769.00
    Subtotal:
    Add to cart
  • Daniel Defense MK18 Upper Receiver Group 10.3" Bbl.
    Add to cart

    Daniel Defense MK18 Upper Receiver Group 10.3" Bbl.

    Daniel Defense

    Price: $1,454.00
    Barrel length
    10.3"
    Platform
    AR-15
    Daniel Defense manufactures the highest quality complete AR15 upper receivers on the market today! Every Daniel Defense upper is painstakingly hand assembled, quality assurance tested, and test...
    Price: $1,454.00
    Add to cart Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $1,454.00
    Subtotal:
    Add to cart
  • On Sale
    HK MR762 A4 13" Upper Receiver Kit
    Add to cart

    HK MR762 A4 13" Upper Receiver Kit

    Heckler & Koch

    Was: $3,049.00
    Sale Price: $2,499.98
    Save:
    H&K MR762 A4 13" Upper Receiver Kit Upgrade your rifle with the genuine H&K MR762 A4 13" Upper Receiver Kit, a factory OEM upper assembly engineered by Heckler & Koch for exceptional reliability,...
    Was: $3,049.00
    Sale Price: $2,499.98
    Save:
    Add to cart Quick view
    In cart: 0
    Quantity:
    Price:
    Was: $3,049.00
    Sale Price: $2,499.98
    Save:
    Subtotal:
    Add to cart
  • The Daniel Defense M4A1 Upper Receiver Group features the M4A1 Rail Interface System (RIS II), which has been in use by US Special Operations Command (SOCOM) for the SOPMOD II Weapons System since 2005. This two-piece, free-floating rail system allows the mounting of devices like a M203 grenade launcher without influencing the barrels harmonics, eliminating problems like wandering point of impact that plagued other mounting designs. The two-piece design also allows for partial disassembly of the rail to aid in cleaning around barrel without completely removing the entire rail system. The weight of anything attached to the RISII rail system is fully supported by a sturdy bolt-up system, using 6 grade 8 bolts, leaving the barrel completely free floating for best possible accuracy and dependability. The M4A1 features a 14.5" Cold Hammer Forged M4 Profile barrel with a permanently attached Daniel Defense Improved Flash Suppressor to meet the NFA required 16" length. All Daniel Defense complete upper receiver groups come standard with an M16 profile bolt carrier group.
    Add to cart

    Daniel Defense M4A1 Upper Receiver 5.56mm 14.5"/16" Overall Barrel

    Daniel Defense

    Price: $1,499.00
    Caliber
    5.56mm
    Barrel length
    14.5"/16" Overall
    Platform
    AR-15
    Daniel Defense’s M4A1 AR15 Style Upper Receiver Group was inspiered by the USSOCOM SOPMOD Block II, and comes packed with Daniel Defense exclusive features. The upper receiver is MIL-SPEC with...
    Price: $1,499.00
    Add to cart Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $1,499.00
    Subtotal:
    Add to cart
  • Out of stock
    Colt AR-15 6940 Upper Receiver Assembly 5.56x45mm 16" Barrel Monolithic Rail

    Colt AR-15 6940 Upper Receiver Assembly 5.56x45mm 16" Barrel Monolithic Rail

    Colt

    Price: $949.98
    Platform
    AR-15
    COLT LE6940 16 INCH MONOLITHIC UPPER RECEIVER ASSEMBLY Description The Colt LE6940CK Monolithic Upper Receiver Assembly feature's Colt's new monolithic upper receiver. In addition to an uninterrupted...
    Price: $949.98
    Out of stock Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $949.98
    Subtotal:
    Out of stock
  • On Sale
    Geissele 08-159 URG-I Complete Upper Receiver  14.5" Barrel
    Add to cart

    Geissele 08-159 URG-I Complete Upper Receiver  14.5" Barrel

    Geissele

    Was: $1,499.00
    Sale Price: $1,399.98
    Save:
    Platform
    AR-15
    For more than 50 years the famed silhouette of the M16/M4 has only had one major and several minor changes. Barrel lengths and buttstocks have changed, but more or less the evolution of America’s...
    Was: $1,499.00
    Sale Price: $1,399.98
    Save:
    Add to cart Quick view
    In cart: 0
    Quantity:
    Price:
    Was: $1,499.00
    Sale Price: $1,399.98
    Save:
    Subtotal:
    Add to cart
  • Geissele Automatics, Super Duty MOD1, Complete Upper Receiver, 556NATO, 16" Barrel, 1:7 Twist, HUXWRX Flash Hider-QD 556, 15" SMR MK16 M-LOK Free Float Handguard, Geissele Airborn Charging Handle, Nanoweapon Reliability Enhanced Bolt Carrier Group, Fits AR-15, Anodized Finish, Black
    Add to cart

    Geissele 08-548B Super Duty MOD1 Complete Upper 16" 5.56mm Black

    Geissele

    Price: $1,285.00
    Platform
    AR-15
    The Super Duty® MOD1 is the current evolution of the Super Duty® platform, incorporating continuous design development to provide superior ergonomics and modularity while maintaining the legendary...
    Price: $1,285.00
    Add to cart Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $1,285.00
    Subtotal:
    Add to cart
  • Noveske X Irregular Defense CHAINSAW 11.5” Complete Upper Receiver
    Add to cart

    Noveske X Irregular Defense CHAINSAW 11.5” Complete Upper Receiver

    Noveske

    Price: $1,600.00
    Platform
    AR-15
    Irregular Defense CHAINSAW 11.5” Complete Upper Receiver The Noveske Chainsaw 11.5” Upper Assembly is a high-performance, duty-ready upper, blending precision machining, premium materials, and...
    Price: $1,600.00
    Add to cart Quick view
    In cart: 0
    Quantity:
    Price:
    Price: $1,600.00
    Subtotal:
    Add to cart
  • On Sale
    Geissele Automatics, URG-I, Near Clone, Complete Upper Receiver, 556NATO, 10.3" Barrel, 1:7 Twist, Surefire 4 Prong Flash Hider, Desert Dirt Color 9.3" SMR MK16 M-LOK Free Float Handguard, Desert Dirt Color Geissele Airborne Charging Handle, Geissele Reliability Enhanced Bolt Carrier Group, Fits AR-15, Anodized Finish, Black, Includes Super 42 Braided Wire Buffer Spring and H3 Buffer Combo
    Add to cart

    Geissele 08-176 URG-I Complete Upper Receiver 10.3" Barrel

    Geissele

    Was: $1,499.00
    Sale Price: $1,399.98
    Save:
    Platform
    AR-15
    Geissele Automatics, URG-I, Near Clone, Complete Upper Receiver, 556NATO, 10.3" Barrel, 1:7 Twist, Surefire 4 Prong Flash Hider, Desert Dirt Color 9.3" SMR MK16 M-LOK Free Float Handguard, Desert...
    Was: $1,499.00
    Sale Price: $1,399.98
    Save:
    Add to cart Quick view
    In cart: 0
    Quantity:
    Price:
    Was: $1,499.00
    Sale Price: $1,399.98
    Save:
    Subtotal:
    Add to cart
  • Total: items /

Adding your products to cart

View cart Continue shopping