Handguards & Accessories

SR-25 / AR15 Rails, Grips, Handguards and More from Operation Parts

AR-15 & SR-25 Free Float & Non Free Float tactical handguard models, Rail Systems, Accessories, Grips, Panel Covers from A.R.M.S., Ergo, Falcon, TangoDown, KAC-Knight's Armament, Daniel Defense, GG&G, LMT-Lewis Machine & Tool, Magpul, Surefire, Troy Industries, Vltor, and Yankee Hill Machine. Browse our full selection of AR15 grips and rails, including Picatinny rails with real time inventory and fast shipping!

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  • KAC-Knight's Armament Keymod Belt Hook Assembly
    KAC-Knight's Armament Keymod Belt Hook Assembly $50.25
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  • Black
    KAC-Knight's Armament Keymod Handstop $25.19
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  • KAC-Knight's Armament Keymod Rail Sling Mount
    KAC-Knight's Armament Keymod Rail Sling Mount $38.05
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  • KAC-Knight's Armament KeyMod Sight Kit With 300M Rear Sight (30759)
    KAC-Knight's Armament KeyMod Sight Kit With 300M Rear Sight $280.67 $209.95
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  • KAC-Knight's Armament Keymod Sling Hook Assy
    KAC-Knight's Armament Keymod Sling Hook Assy $50.24
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  • KAC-Knight's Armament M-LOK Rail Section, 5 Slot
    KAC-Knight's Armament M-LOK Rail Section, 5 Slot $41.58
    Out of stock
  • M1A/M14 RAS
    KAC-Knight's Armament M14 And M1A Rifle RAS, Deluxe Model With Rear Scope Mount Base $569.53 $558.14
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  • KAC-Knight's Armament M249 RAS
    KAC-Knight's Armament M249 RAS $373.75
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  • KAC-Knight's Armament M4 RAS Handguad Leaf Spring
    KAC-Knight's Armament M4 RAS Handguad Leaf Spring $5.95
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  • KAC-Knight's Armament M4 URX, 5.56mm 7 3/16"
    KAC-Knight's Armament M4 URX, 5.56mm 7 3/16" $243.00
  • KAC-Knight's Armament M4/M5 RAS Hardware Kit
    KAC-Knight's Armament M4/M5 RAS Hardware Kit $28.21
    Out of stock
  • KAC-Knight's Armament Medium FF RAS, 10 3/8"
    KAC-Knight's Armament Medium FF RAS, 10 3/8" $350.00
    Out of stock
  • KAC-Knight's Armament MP5 RAS
    KAC-Knight's Armament MP5 RAS $350.00
    Out of stock
  • KAC-Knight's Armament Panel Kit, Deluxe, URX III & 3.1
    KAC-Knight's Armament Panel Kit, Deluxe, URX III & 3.1 $86.63
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  • KAC-Knight's Armament Panel Kit, Long URX 3 & 3.1
    KAC-Knight's Armament Panel Kit, Long URX 3 & 3.1 $42.53
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  • KAC-Knight's Armament Panel Kit, URX 3 & 3.1
    KAC-Knight's Armament Panel Kit, URX 3 & 3.1 $47.25
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  • Black
    KAC-Knight's Armament Panel Kit, URX 4 $20.11
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  • KAC-Knight's Armament Picatinny Rail Thumb Rest, Black
    KAC-Knight's Armament Picatinny Rail Thumb Rest, Black $19.07
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  • KAC-Knight's Armament RAS M-4 Carbine Rail Adapter System With Three 11 Rib Panels
    KAC-Knight's Armament RAS M-4 Carbine Rail Adapter System With Three 11 Rib Panels $250.73
    Out of stock
  • KAC-Knight's Armament RAS M-5 Rifle, Rail Adapter System With Three 11 Rib Panels
    KAC-Knight's Armament RAS M-5 Rifle, Rail Adapter System With Three 11 Rib Panels $278.52
    Out of stock
  • KAC-Knight's Armament RAS M4 Canadian, With UK/SAS Lower Rail
    KAC-Knight's Armament RAS M4 Canadian, With UK/SAS Lower Rail $445.13
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  • KAC-Knight's Armament RAS M4 Carbine Rail Adapter System, Mil-Pack
    KAC-Knight's Armament RAS M4 Carbine Rail Adapter System, Mil-Pack $472.75 $463.30
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  • KAC-Knight's Armament RAS MRE-MODEL B, RAIL FRONT FILLER TUBE
    KAC-Knight's Armament RAS MRE-MODEL B, RAIL FRONT FILLER TUBE $450.00
    Out of stock
  • KAC-Knight's Armament RIS, Rail Interface System
    KAC-Knight's Armament RIS, Rail Interface System $351.39
    Out of stock
  • KAC-Knight's Armament SR-15 RAS Handguard Pin
    KAC-Knight's Armament SR-15 RAS Handguard Pin $5.50
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  • KAC-Knight's Armament SR-15/AR15 URX Barrel Nut
    KAC-Knight's Armament SR-15/AR15 URX Barrel Nut $34.65
    Out of stock
  • KAC-Knight's Armament SR-25 RAS Handguard Pin
    KAC-Knight's Armament SR-25 RAS Handguard Pin $5.50
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  • KAC-Knight's Armament SR-25 Spare URX Barrel Nut
    KAC-Knight's Armament SR-25 Spare URX Barrel Nut $71.50
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  • KAC-Knight's Armament SR-25 URX Rifle Length With Folding Front Sight, XM-110 SASS 12 1/2"
    KAC-Knight's Armament SR-25 URX Rifle Length With Folding Front Sight, XM-110 SASS 12 1/2" $699.68
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  • KAC-Knight's Armament SR15/AR15 RAS Barrel Nut
    KAC-Knight's Armament SR15/AR15 RAS Barrel Nut $103.94
    Out of stock
  • 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 Lower RAS Rail, Fits M4 RAS Or RIS
    KAC-Knight's Armament Standard Lower RAS Rail, Fits M4 RAS Or RIS $75.00
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  • 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
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  • 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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