Iron Sights (BUIS)

Back Up Iron Sight Selection from Operation Parts

Here you will find all of the backup iron sights (BUIS) that we carry for AR-15 / SR-25. View real-time inventory on M4 sights, M16 sights and a variety of AR 15 sights, which can either be used alone or in conjunction with a red dot scope. We carry both fixed and fold down/flip up versions that can be stored in the down position when only the red dot is required. They can quickly be deployed if the red dot were to go down. We carry AR15 iron sights made by A.R.M.S., GG&G, LMT-Lewis Machine & Tool, KAC-Knight's Armament, PRI-Precision Reflex, Troy Industries, Vltor, and YHM-Yankee Hill Machine.

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  •  Knight's Armament Flip-Up Front Or Rear Sight Clamp
    Knight's Armament Flip-Up Front Or Rear Sight Clamp $3.79 $3.60
  • A.R.M.S. #40 Stand Alone Flip Up Rear Sight 500-600 Meters
    A.R.M.S. #40 Stand Alone Flip Up Rear Sight 500-600 Meters $115.49
  • A.R.M.S. #40L Stand Alone Flip Up Rear Sight (Low Profile)
    A.R.M.S. #40L Stand Alone Flip Up Rear Sight (Low Profile) $129.71
  • A.R.M.S. #40L-SP Flip Up Rear Sight Same - Plane Dual Aperture (Low Profile)
    A.R.M.S. #40L-SP Flip Up Rear Sight Same - Plane Dual Aperture (Low Profile) $129.71
  • A.R.M.S. #40Std A2 250-300 Meter Backup Iron Sight
    A.R.M.S. #40Std A2 250-300 Meter Backup Iron Sight $115.49
  • A.R.M.S. #71L series, Front Sight, Black
    A.R.M.S. #71L series, Front Sight, Black $40.33
  • A.R.M.S. #71L series, Rear Sight, Black
    A.R.M.S. #71L series, Rear Sight, Black $58.86
  • A.R.M.S. Silhouette #41-B - Folding Front Sight Barrel Mounted
    A.R.M.S. Silhouette #41-B - Folding Front Sight Barrel Mounted $167.32
  • A.R.M.S. Silhouette #41-B-L - Folding Front Sight Barrel Mounted, With Bayonet Lug
    A.R.M.S. Silhouette #41-B-L - Folding Front Sight Barrel Mounted, With Bayonet Lug $173.86
  • Daniel Defense A1.5 Fixed Rear Sight
    Daniel Defense A1.5 Fixed Rear Sight $73.00
  • Daniel Defense Rail-Mounted Fixed Front Sight
    Daniel Defense Rail-Mounted Fixed Front Sight $63.00
  • GG&G A2 Flip-Up Rear Back Up Iron Sight (BUIS) With Locking Detent
    GG&G A2 Flip-Up Rear Back Up Iron Sight (BUIS) With Locking Detent $124.95 $93.71
  • GG&G A2 Flip-Up Rear Back Up Iron Sight (BUIS) With Locking Detent And Tritium
    GG&G A2 Flip-Up Rear Back Up Iron Sight (BUIS) With Locking Detent And Tritium $174.95 $131.32
  • GG&G AR15 Tactical Modular Bolt On Flip Up Front Sight And Gas Block
    GG&G AR15 Tactical Modular Bolt On Flip Up Front Sight And Gas Block $165.00 $132.00
  • GG&G Fixed 45 Degree Transition Iron Sights
    GG&G Fixed 45 Degree Transition Iron Sights $175.00 $140.00
  • GG&G Flip Up Front Sight For AR-15 Tactical Forearms
    GG&G Flip Up Front Sight For AR-15 Tactical Forearms $89.95 $69.95
  • GG&G Front Flip Up Sight For Dovetail Gas Blocks
    GG&G Front Flip Up Sight For Dovetail Gas Blocks $135.00 $90.72
  • GG&G Mil-Std-1913 Accessory Rail For Modular Tactical Flip Up Front Sights
    GG&G Mil-Std-1913 Accessory Rail For Modular Tactical Flip Up Front Sights $31.00 $23.25
  • GG&G Multiple Apterture Device (Mad) Flip-Up Rear Backup Iron Sight
    GG&G Multiple Apterture Device (Mad) Flip-Up Rear Backup Iron Sight $140.00 $104.95
  • GG&G Multiple Apterture Device (Mad) Flip-Up Rear Backup Iron Sight With Ranging Aperture
    GG&G Multiple Apterture Device (Mad) Flip-Up Rear Backup Iron Sight With Ranging Aperture $140.00 $84.95
  • GG&G Multiple Apterture Device (Mad) Flip-Up Rear Backup Iron Sight With Tritium
    GG&G Multiple Apterture Device (Mad) Flip-Up Rear Backup Iron Sight With Tritium $190.00 $127.68
  • GG&G Spring Actuated A2 Back Up Iron Sight (BUIS)
    GG&G Spring Actuated A2 Back Up Iron Sight (BUIS) $124.95 $93.71
  • GG&G Spring Actuated A2 Back Up Iron Sight (BUIS) With Tritium Aperture
    GG&G Spring Actuated A2 Back Up Iron Sight (BUIS) With Tritium Aperture $174.95 $129.95
  • GG&G Spring Actuated Flip Up Front (BUIS) Sight For AR15 Tactical Forearms
    GG&G Spring Actuated Flip Up Front (BUIS) Sight For AR15 Tactical Forearms $99.95 $79.96
  • GG&G Spring Actuated Flip Up Front Sight (BUIS) For AR15 Dovetail Gas Blocks
    GG&G Spring Actuated Flip Up Front Sight (BUIS) For AR15 Dovetail Gas Blocks $99.95 $79.96
  • Griffin Armament Fail Safe Angle Sights
    Griffin Armament Fail Safe Angle Sights $194.95 $184.95
  • KAC-Knight's Armament 200-600 Meter Flip-Up Rear Sight
    KAC-Knight's Armament 200-600 Meter Flip-Up Rear Sight $193.98 $189.95
  • KAC-Knight's Armament 200-600 Meter Micro Flip-Up Rear Sight
    KAC-Knight's Armament 200-600 Meter Micro Flip-Up Rear Sight $153.15 $149.95
  • KAC-Knight's Armament 300 Meter Flip-Up Rear Sight
    KAC-Knight's Armament 300 Meter Flip-Up Rear Sight $184.72 $181.03
  • KAC-Knight's Armament 300 Meter Micro Flip-Up Rear Sight
    KAC-Knight's Armament 300 Meter Micro Flip-Up Rear Sight $124.50 $119.95
  • KAC-Knight's Armament 45 DEG Offset Rail Mounted Micro 300m Sight Kit
    KAC-Knight's Armament 45 DEG Offset Rail Mounted Micro 300m Sight Kit $233.75 $229.08
  • KAC-Knight's Armament 45 Degree Offset Micro Front and Rear Sight Set
    KAC-Knight's Armament 45 Degree Offset Micro Front and Rear Sight Set $281.25
  • KAC-Knight's Armament KeyMod Sight Kit With 300M Rear Sight
    KAC-Knight's Armament KeyMod Sight Kit With 300M Rear Sight $278.44 $234.95
  • KAC-Knight's Armament Locking Front Folding Sight, Fits SR15, SR16, M16, AR-15 With 0.750 Inch Barrel
    KAC-Knight's Armament Locking Front Folding Sight, Fits SR15, SR16, M16, AR-15 With 0.750 Inch Barrel $459.95
  • KAC-Knight's Armament M16 Leaf Sight For M203 Granade Launcher, Mounts To KAC RAS
    KAC-Knight's Armament M16 Leaf Sight For M203 Granade Launcher, Mounts To KAC RAS $242.96 $238.10
  • KAC-Knight's Armament Micro Front Flip Up Sight
    KAC-Knight's Armament Micro Front Flip Up Sight $153.15 $149.95
  • KAC-Knight's Armament MK 11 Mod 0 Folding Front Sight, Push Button Locked
    KAC-Knight's Armament MK 11 Mod 0 Folding Front Sight, Push Button Locked $243.75 $238.88
  • KAC-Knight's Armament Peep Aperture For 300 M Sight
    KAC-Knight's Armament Peep Aperture For 300 M Sight $2.38 $2.33
  • KAC-Knight's Armament Standard SR25 Front Folding Sight
    KAC-Knight's Armament Standard SR25 Front Folding Sight $168.51 $165.14
  • Knight's Armament 45 Degree Offset Folding Micro Front Sight, Clamp Mount
    Knight's Armament 45 Degree Offset Folding Micro Front Sight, Clamp Mount $135.00 $132.30
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