AR-15 Upper Receiver Parts

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  • KAC-Knight's Armament SR25 Flash Suppressor Shim Kit, For 3/4"-24
    KAC-Knight's Armament SR25 Flash Suppressor Shim Kit, For 3/4"-24 $36.02
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  • KAC-Knight's Armament SR25 MK11 MOD 0 RAS 12 1/4"
    KAC-Knight's Armament SR25 MK11 MOD 0 RAS 12 1/4" $510.71
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  • KAC-Knight's Armament SR25/AR10 RAS Barrel Nut
    KAC-Knight's Armament SR25/AR10 RAS Barrel Nut $46.14
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  • KAC-Knight's Armament Standard SR25 Front Folding Sight
    KAC-Knight's Armament Standard SR25 Front Folding Sight $168.51 $165.14
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  • KAC-Knight's Armament Tri Mount Extended Rail
    KAC-Knight's Armament Tri Mount Extended Rail $293.94 $288.06
    Out of stock
  • KAC-Knight's Armament UK-SAS Lower RAS Rail W/Clamp, Fits M4 RAS Or RIS
    KAC-Knight's Armament UK-SAS Lower RAS Rail W/Clamp, Fits M4 RAS Or RIS $100.07
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  • KAC-Knight's Armament URX 3.0 & 3.1 8 Rib Rail Section Kit, Black Aluminum
    KAC-Knight's Armament URX 3.0 & 3.1 8 Rib Rail Section Kit, Black Aluminum $34.02
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  • Black
    KAC-Knight's Armament URX 3.0 & 3.1 8 Rib Rail Section Kit, Plastic $28.27
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  • KAC-Knight's Armament URX 3.0 & 3.1 Handstop, 1 HOLE
    KAC-Knight's Armament URX 3.0 & 3.1 Handstop, 1 HOLE $39.37
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  • KAC-Knight's Armament URX 3.1 7.62mm SR-25/M110K1 Carbine Rail, Black
    KAC-Knight's Armament URX 3.1 7.62mm SR-25/M110K1 Carbine Rail, Black $437.68
    Out of stock
  • KAC-Knight's Armament URX 3.1 Sling Swivel Kit
    KAC-Knight's Armament URX 3.1 Sling Swivel Kit $28.27
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  • KAC-Knight's Armament URX III 8" RAIL
    KAC-Knight's Armament URX III 8" RAIL $313.74
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  • KAC-Knight's Armament URX Rail SR25 Carbine With Integral Front Sight 10"
    KAC-Knight's Armament URX Rail SR25 Carbine With Integral Front Sight 10" $501.25 $491.23
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  • KAC-Knight's Armament URX3/3.1 Belt Hook Kit
    KAC-Knight's Armament URX3/3.1 Belt Hook Kit $50.24
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  • KAC-Knight's Armament URX3/3.1 Sling Hook Kit
    KAC-Knight's Armament URX3/3.1 Sling Hook Kit $50.25
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  • KAC-Knight's Armament Wing Nut For Aimpoint Mounts
    KAC-Knight's Armament Wing Nut For Aimpoint Mounts $14.04 $13.76
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  • KAC-Knight's Armement 30mm Reflex Mount For Aimpoint Comp Straight Up Mounting
    KAC-Knight's Armement 30mm Reflex Mount For Aimpoint Comp Straight Up Mounting $154.06
    Out of stock
  • KAC-Knights Armament SR15 Field Repair Kit, New Style
    KAC-Knights Armament SR15 Field Repair Kit, New Style $139.86
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  • Keymod Full Side Rail for 13" & 14.5" URX 4 Rails
    Keymod Full Side Rail for 13" & 14.5" URX 4 Rails $59.60
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  • Kinetic Development Group SCAR MREX™- MLOK™ 4.9″ SHORT
    Kinetic Development Group SCAR MREX™- MLOK™ 4.9″ SHORT $299.00 $278.07
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  • Kinetic Development Group SCAR MREX™- MLOK™ 6.5″
    Kinetic Development Group SCAR MREX™- MLOK™ 6.5″ $299.00 $278.07
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  • Kinetic Development Kinect MLOK 3 Slot (Single MLOK™) Picatinny Section
    Kinetic Development Kinect MLOK 3 Slot (Single MLOK™) Picatinny Section $49.99 $46.49
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  • Kinetic Development Kinect MLOK 7 Slot (Dual MLOK™) Picatinny Section
    Kinetic Development Kinect MLOK 7 Slot (Dual MLOK™) Picatinny Section $59.99 $55.79
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  • Kinetic Development Kinect MLOK Universal Picatinny/Surefire Offset Mount
    Kinetic Development Kinect MLOK Universal Picatinny/Surefire Offset Mount $64.99 $60.44
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  • Kinetic Development MREX™-AR MLOK™ 12″* Modular (AR) Rail, Black
    Kinetic Development MREX™-AR MLOK™ 12″* Modular (AR) Rail, Black $259.00 $240.87
    Add To Cart
  • Kinetic Development SideLok Aimpoint PRO/Comp M4/C3 Sight Mount
    Kinetic Development SideLok Aimpoint PRO/Comp M4/C3 Sight Mount $139.00 $129.27
    Out of stock
  • Kinetic Development SideLok Aimpoint T1/H1/T2/H2 Sight Mount
    Kinetic Development SideLok Aimpoint T1/H1/T2/H2 Sight Mount $139.00 $129.27
    Out of stock
  • Kinetic Development SideLok Trijicon MRO Sight Mount (SID5-220)
    Kinetic Development SideLok Trijicon MRO Sight Mount $139.00 $129.27
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  • Kinetic Development SideLok Universal Scope Riser / Picatinny Rail
    Kinetic Development SideLok Universal Scope Riser / Picatinny Rail $99.00 $92.07
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  • Knight's Armament  SR-16 CQB Gov’t Spec Upper
    Knight's Armament SR-16 CQB Gov’t Spec Upper $1,470.00
  • Knight's Armament  SR-30 9.5" .300 Blackout M-LOK Upper Receiver
    Knight's Armament SR-30 9.5" .300 Blackout M-LOK Upper Receiver $1,833.44
    Out of stock
  • Knight's Armament 45 Degree Offset Folding Micro Front Sight, Clamp Mount
    Knight's Armament 45 Degree Offset Folding Micro Front Sight, Clamp Mount $136.08
    Out of stock
  • Knight's Armament Picatinny Rail Mount 45 Degree Offset Micro Rear Sight In Up Position
    Knight's Armament 45 Degree Offset Folding Micro Rear Sight, 200-600m, Clamp Mount $151.20
    Out of stock
  • Knight's Armament 45 Degree Offset Folding Micro Sight Set, 200-600m, Clamp Mount
    Knight's Armament 45 Degree Offset Folding Micro Sight Set, 200-600m, Clamp Mount $283.50
    Out of stock
  • Knight's Armament 5.56 M4QD MAMS Muzzle Brake Kit, 1/2"-28 QDSS-NT4 Compatible Suppressor Mount
    Knight's Armament 5.56 M4QD MAMS Muzzle Brake Kit, 1/2"-28 QDSS-NT4 Compatible Suppressor Mount $201.56
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  • Knight's Armament 5.56mm Muzzle Device Shim Set
    Knight's Armament 5.56mm Muzzle Device Shim Set $17.64
    Out of stock
  • Knight's Armament 7.62mm Muzzle Device Shim Kit
    Knight's Armament 7.62mm Shim Set, For 3/4"-24 KAC Muzzle Devices $29.46
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  • Knight's Armament 99051 Front Sight Post
    Knight's Armament 99051 Front Sight Post $8.69
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  • Knight's Armament 99051 Front Sight Post Detent
    Knight's Armament 99051 Front Sight Post Detent $3.25
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  • Knight's Armament AR-10/SR-25 AMBI Charging Handle
    Knight's Armament AR-10/SR-25 AMBI Charging Handle $226.80
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