AR-15 Upper Receiver Parts

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  • 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
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  • 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
    Out of stock
  • 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
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  • Knight's Armament AR-15/SR-15 AMBI Charging Handle
    Knight's Armament AR-15/SR-15 AMBI Charging Handle $151.20
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  • Knight's Armament M4 M5 RAS Clamp Screw
    Knight's Armament Clamp Screw For M4 And M5 RAS $3.16 $3.00
    Out of stock
  • 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
    Out of stock
  • 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
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  • 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
    Out of stock
  • 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
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  • 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
    Out of stock
  • 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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  • KNIGHT'S ARMAMENT SR-15 AMBI MAG RELEASE ROLL PIN $2.99
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  • KNIGHT'S ARMAMENT SR-15 BOLT CATCH ROLL PIN $5.56
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  • Knight's Armament SR-15 Carbine Mod 2 M-Lok Upper Receiver Assembly, 14.5"
    Knight's Armament SR-15 Carbine Mod 2 M-Lok Upper Receiver Assembly, 14.5" $1,776.60
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  • Knight's Armament SR-15 Carbine Mod 2 Upper Receiver Assembly, 14.5"
    Knight's Armament SR-15 Carbine Mod 2 Upper Receiver Assembly-Keymod, 14.5" $1,776.60
    Out of stock
  • Knight's Armament SR-15 E3 11.5" CQB Mod 2 SBR M-Lok Upper Receiver Assy
    Knight's Armament SR-15 E3 11.5" CQB Mod 2 SBR M-Lok Upper Receiver Assy $1,776.60
    Out of stock
  • Knight's Armament SR-15 E3 11.5" CQB Mod 2 SBR Upper Receiver Assy, URX 4
    Knight's Armament SR-15 E3 11.5" CQB Mod 2 SBR Upper Receiver Assy, URX 4 $1,776.60
    Out of stock
  • Knight's Armament SR-15 E3 Bolt Extractor, Dimpled
    Knight's Armament SR-15 E3 Bolt Extractor, Dimpled $54.51 $51.95
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  • Knight's Armament SR-15 E3 CQB SBR Mod 1 Upper Receiver Assy
    Knight's Armament SR-15 E3 CQB SBR Mod 1 Upper Receiver Assy $1,750.00
  • Knight's Armament SR-15 Firing Pin Retainer
    Knight's Armament SR-15 Firing Pin Retainer $3.61
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  • Knight's Armament SR-15 Gas Block Taper Pin
    Knight's Armament SR-15 Gas Block Taper Pin $3.08 $3.02
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  • KNIGHT'S ARMAMENT SR-15 GAS TUBE ROLL PIN $3.69
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