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    • AR-15 UPPERS

      • 5.56 Uppers
      • 6mm ARC Uppers
      • 6.5 Grendel Uppers

      AR-15 BUILDER KITS

      • 5.56 Custom Upper Builder
      • Custom Lower Build Kits
      • Custom Lower Parts Kit
      • Custom Buffer System Assemblies
      • Handguard Combo Sets

      UPPER RECEIVER PARTS

      • Upper Receivers
      • Barrels
      • Gas Blocks & Tubes
      • Bolts & Bolt Carrier Groups
      • Charging Handles
      • Dust Covers
      • Forward Assists
      • Handguards
      • Muzzle Devices
      • Rail Accessories

      LOWER RECEIVER PARTS

      • Buffers
      • Grips
      • Magazines
      • Mag Releases
      • Selector Switches
      • Small Lower Parts
      • Stocks
      • Takedown Pins
      • Triggers

      GRENDEL HUNTER GEAR

      • Gift Certificates
      • Cleaning Supplies
      • Tools
      • SWAG
      • Knives

      GRENDEL HUNTER GEAR

      • Gift Certificates
      • Cleaning Supplies
      • Tools
      • SWAG
      • Knives
  • DEALS //
    • Current Deals
    • Military Discount
  • CONTACT //
  • ABOUT //
    • About Grendel Hunter
    • Pro Staff
    • FAQ’s
    • Policies
    • Customer Photo Gallery
  • BLOG
$0.00 Cart
  • HOME //
  • SHOP //
    • AR-15 UPPERS
      • 5.56 Uppers
      • 6mm ARC Uppers
      • 6.5 Grendel Uppers
    • AR-15 BUILDER KITS
      • 5.56 Custom Upper Builder
      • Custom Lower Build Kits
      • Custom Lower Parts Kit
      • Custom Buffer System Assemblies
      • Handguard Combo Sets
    • UPPER RECEIVER PARTS​
      • Upper Receivers
      • Barrels
      • Gas Blocks & Tubes
      • Bolts & Bolt Carrier Groups
      • Charging Handles
      • Dust Covers
      • Forward Assists
      • Handguards
      • Muzzle Devices
      • Rail Accessories
    • GRENDEL HUNTER GEAR
      • Gift Certificates
      • Cleaning Supplies
      • Tools
      • SWAG
      • Knives
  • DEALS //
    • Current Deals
    • Military Discount
  • CONTACT //
  • ABOUT //
    • About Grendel Hunter
    • Pro Staff
    • FAQ
    • Policies
    • Customer Photo Gallery
  • BLOG
Menu
  • HOME //
  • SHOP //
    • AR-15 UPPERS
      • 5.56 Uppers
      • 6mm ARC Uppers
      • 6.5 Grendel Uppers
    • AR-15 BUILDER KITS
      • 5.56 Custom Upper Builder
      • Custom Lower Build Kits
      • Custom Lower Parts Kit
      • Custom Buffer System Assemblies
      • Handguard Combo Sets
    • UPPER RECEIVER PARTS​
      • Upper Receivers
      • Barrels
      • Gas Blocks & Tubes
      • Bolts & Bolt Carrier Groups
      • Charging Handles
      • Dust Covers
      • Forward Assists
      • Handguards
      • Muzzle Devices
      • Rail Accessories
    • GRENDEL HUNTER GEAR
      • Gift Certificates
      • Cleaning Supplies
      • Tools
      • SWAG
      • Knives
  • DEALS //
    • Current Deals
    • Military Discount
  • CONTACT //
  • ABOUT //
    • About Grendel Hunter
    • Pro Staff
    • FAQ
    • Policies
    • Customer Photo Gallery
  • BLOG
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Most Orders Ship in 1 - 3 Business Days

Upper Receiver Parts

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  • Grendel Hunter Assembled Upper Receiver – TungstenGrendel Hunter Assembled Upper Receiver – Tungsten
    • Grendel Hunter Assembled Upper Receiver – TungstenGrendel Hunter Assembled Upper Receiver – Tungsten
    • Grendel Hunter Assembled Upper Receiver – Tungsten

    • From: $159.99…
    • Select options
  • Grendel Hunter Stripped Upper Receiver  – BlackGrendel Hunter Stripped Upper Receiver  – Black
    • Grendel Hunter Stripped Upper Receiver  – BlackGrendel Hunter Stripped Upper Receiver  – Black
    • Grendel Hunter Stripped Upper Receiver – Black

    • $139.99
    • Add to cart
  • Grendel Hunter Stripped Upper Receiver – FDEGrendel Hunter Stripped Upper Receiver – FDE
    • Grendel Hunter Stripped Upper Receiver – FDEGrendel Hunter Stripped Upper Receiver – FDE
    • Grendel Hunter Stripped Upper Receiver – FDE

    • $149.99
    • Add to cart
  • Grendel Hunter Stripped Upper Receiver – TungstenGrendel Hunter Stripped Upper Receiver – Tungsten
    • Out of Stock
      Grendel Hunter Stripped Upper Receiver – TungstenGrendel Hunter Stripped Upper Receiver – Tungsten
    • Grendel Hunter Stripped Upper Receiver – Tungsten

    • $149.99
    • Read more
  • Low Profile Gas BlockLow Profile Gas Block
    • ↓ 17%
      Low Profile Gas BlockLow Profile Gas Block
    • Low Profile Gas Block

    • $17.99 $14.99
    • Add to cart
  • Magpul MLOK QD Sling Mount
    • Magpul MLOK QD Sling Mount
    • Magpul MLOK QD Sling Mount

    • $18.95
    • Add to cart
  • Magpul QD Sling Swivel
    • Magpul QD Sling Swivel
    • Magpul QD Sling Swivel

    • $14.20
    • Add to cart
  • Radian RAPTOR-LT Charging HandleRadian RAPTOR-LT Charging Handle
    • Out of Stock
      ↓ 5%
      Radian RAPTOR-LT Charging HandleRadian RAPTOR-LT Charging Handle
    • Radian RAPTOR-LT Charging Handle

    • $69.95 $66.45
    • Read more
  • Radian RAPTOR-LT Charging Handle FDE
    • ↓ 5%
      Radian RAPTOR-LT Charging Handle FDE
    • Radian RAPTOR-LT Charging Handle FDE

    • $74.95 $71.20
    • Add to cart
  • Rosco Bloodline 16″ Heavy Barrel 5.56 NATO
    • Out of Stock
      ↓ 10%
      Rosco Bloodline 16″ Heavy Barrel 5.56 NATO
    • Rosco Bloodline 16″ Heavy Barrel 5.56 NATO

    • $165.00 $148.50
    • Read more
  • Rosco Bloodline 16″ M4 Barrel 5.56 NATO (Carbine)Rosco Bloodline 16″ M4 Barrel 5.56 NATO (Carbine)
    • ↓ 10%
      Rosco Bloodline 16″ M4 Barrel 5.56 NATO (Carbine)Rosco Bloodline 16″ M4 Barrel 5.56 NATO (Carbine)
    • Rosco Bloodline 16″ M4 Barrel 5.56 NATO (Carbine)

    • $150.00 $135.00
    • Add to cart
  • Rosco Bloodline 16″ M4 Barrel 5.56 NATO (Mid)Rosco Bloodline 16″ M4 Barrel 5.56 NATO (Mid)
    • ↓ 10%
      Rosco Bloodline 16″ M4 Barrel 5.56 NATO (Mid)Rosco Bloodline 16″ M4 Barrel 5.56 NATO (Mid)
    • Rosco Bloodline 16″ M4 Barrel 5.56 NATO (Mid)

    • $150.00 $135.00
    • Add to cart
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Product categories

  • AR-15 Builder Kits (9)
  • Buffer Tube Assembly Parts (11)
  • Current Deals (11)
  • Custom Lower Build Kit (2)
  • Grendel Hunter Gear (21)
    • Cleaning Supplies (11)
    • Gift Certificates (1)
    • SWAG (7)
    • Tools (2)
  • Knives (11)
  • Lower Receiver Parts (144)
    • Buffer System Assemblies (2)
    • Buffers (10)
    • Grips (17)
    • Lower Build Kit Inventory Parts (38)
    • Lower Parts Kits (2)
    • Mag Releases (23)
    • Magazines (10)
    • Selector Switches (8)
    • Small Lower Parts (56)
    • Stocks (30)
    • Takedown Pins (8)
    • Trigger Guards (13)
    • Triggers (9)
  • Uncategorized (1)
  • Upper Receiver Parts (128)
    • Barrels (16)
    • Bolts & Bolt Carrier Groups (11)
    • Charging Handles (13)
    • Dust Covers (11)
    • Forward Assist (10)
    • Gas Blocks and Tubes (11)
    • Handguards (29)
      • Black Anodized (11)
      • FDE Cerakote (8)
      • Handguard Combo Sets (3)
      • Tungsten Cerakote (7)
    • Muzzle Devices (15)
    • Rail Accessories (7)
    • Upper Recievers (9)
  • Uppers (37)
    • 5.56 Uppers (1)
    • 6.5 Grendel Uppers (27)
      • 16" Uppers (6)
      • 18" Uppers (6)
      • 19" Uppers (6)
      • 20" Uppers (6)
      • 22" Uppers (3)
    • 6mm ARC Uppers (9)
      • 18" 6mm ARC Uppers (3)
      • 20" 6mm ARC Uppers (3)
      • 22" 6mm ARC Uppers (3)

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