AR-15 Upper Receiver Parts

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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
    Out of stock
  • 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 "Too Long" Carbine FF RAS $337.90
    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
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  • 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
    Out of stock
  • Knight's Armament 5.56mm Muzzle Device Shim Set
    Knight's Armament 5.56mm Muzzle Device Shim Set $17.64
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  • 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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  • Knight's Armament RAS II With Vertical Grip and 6 Rib Panel
    Knight's Armament AR-15 RAS II Free Float Handguard $151.20
    Out of stock
  • Knight's Armament AR-15/SR-15 AMBI Charging Handle
    Knight's Armament AR-15/SR-15 AMBI Charging Handle $151.20
    Out of stock
  • Knight's Armament M4 M5 RAS Clamp Screw
    Knight's Armament Clamp Screw For M4 And M5 RAS $3.16 $3.00
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  • Knight's Armament M4 M5 RAS Retainer
    Knight's Armament Clamp Screw Retainer Clip For M4 And M5 RAS $3.20 $3.04
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  • Knight's Armament Flip-Up Front Or Rear Sight Clamp Bolt
    Knight's Armament Flip-Up Front Or Rear Sight Clamp Bolt $3.95
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  • Knight's Armament Mid-Length Gas Tube For the SR-15 Mod 2 CQB
    Knight's Armament Gas Tube For the SR-15 11.5" CQB Mod 2, 8 7/16" Long $43.38 $42.51
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  • Knight's Armament HK Suppressor Piston O-Ring
    Knight's Armament HK Suppressor Piston O-Ring $3.38 $3.31
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  • Knight's Armament KeyMod 7 Slot Rail Section
    Knight's Armament KeyMod 7 Slot Rail Section $44.35
    Add To Cart
  • Knight's Armament KeyMod Barrier Stop Assembly
    Knight's Armament KeyMod Barrier Stop Assembly $59.13 $57.95
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  • Knight's Armament KeyMod Skeletonized Barrier Stop Assembly
    Knight's Armament KeyMod Skeletonized Barrier Stop Assembly $59.47
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  • Knight's Armament Keymod Wire Management Panel Kit, URX 4
    Knight's Armament Keymod Wire Management Panel Kit, URX 4 $20.11
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  • Knight's Armament Long FF RAS, MK12 Mod 1
    Knight's Armament Long FF RAS, MK12 Mod 1 $354.20
    Out of stock
  • Knight's Armament M1A/M14 RAS Rear Scope Mount Assy
    Knight's Armament M1A/M14 RAS Rear Scope Mount Assy $96.67
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  • Knight's Armament Micro Flip-Up Front Or Rear Sight Clamp Bolt
    Knight's Armament Micro Flip-Up Front Or Rear Sight Clamp Bolt $8.99
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  • Knight's Armament Micro Flip-Up Front Sight Pivot Pin C-Clip
    Knight's Armament Micro Flip-Up Front Sight Pivot Pin C-Clip $2.49
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  • Knight's Armament Mid-Length Gas Tube For the SR-15 Mod 2
    Knight's Armament Mid-Length Gas Tube For the SR-15 14.5"/16" Mod 2, 11 7/8" Long Long $43.38 $42.51
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  • Knight's Armament MK12 / MK18 RAS Front Folding Sight
    Knight's Armament MK12 / MK18 RAS Front Folding Sight $191.65
    Out of stock
  • Knight's Armament One Piece Scope Mount Assy, 34mm w/30mm Inserts
    Knight's Armament One Piece Scope Mount Assy, 34mm w/30mm Inserts $459.90
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  • Knight's Armament One Piece Scope Mount Clamp Spare Screw
    Knight's Armament One Piece Scope Mount Clamp Screw $3.35 $3.18
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  • Knight's Armament Picatinny Rail Mount Anti-Cant Device
    Knight's Armament Picatinny Rail Mount Anti-Cant Device $72.21
    Out of stock
  • Knight's Armament Piston Assy, MK23 Suppressor, M16X1 RH TPI
    Knight's Armament Piston Assy, MK23 Suppressor, M16X1 RH TPI $620.48 $582.95
    Out of stock
  • Knight's Armament Piston Assy, USP Tactical Suppressor, M16X1 LH TPI
    Knight's Armament Piston Assy, USP Tactical Suppressor, M16X1 LH TPI $620.48 $582.95
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