AR15 Lower Receiver Parts & Kits

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  Complete AR15 Rifle or Pistol build

  Rated 5.00 out of 5
  $0.00

  86 in stock  

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  BKF AR15 Grip Screw Lock Washer

  Rated 4.98 out of 5
  $0.16 Original price was: $0.16.$0.13Current price is: $0.13.

  6517 in stock  

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  BKF AR15 Pivot/Takedown Detent Spring

  Rated 4.98 out of 5
  $0.24 Original price was: $0.24.$0.19Current price is: $0.19.

  13671 in stock  

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  BKF AR15 Buffer Retainer Spring

  Rated 4.96 out of 5
  $0.24 Original price was: $0.24.$0.19Current price is: $0.19.

  32722 in stock  

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  BKF AR15 Bolt Catch Spring

  Rated 4.96 out of 5
  $0.28 Original price was: $0.28.$0.22Current price is: $0.22.

  15124 in stock  

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  AR15 Grip Screw

  Rated 5.00 out of 5
  $0.35 Original price was: $0.35.$0.28Current price is: $0.28.

  Out Of Stock

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  BKF AR15 Bolt Catch Coiled Roll Pin

  Rated 4.93 out of 5
  $0.36 Original price was: $0.36.$0.29Current price is: $0.29.

  83 in stock  

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  BKF AR15 Disconnect Spring

  Rated 5.00 out of 5
  $0.36 Original price was: $0.36.$0.29Current price is: $0.29.

  10736 in stock  

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  BKF AR15 Trigger Guard Coiled Roll Pin

  Rated 4.94 out of 5
  $0.44 Original price was: $0.44.$0.35Current price is: $0.35.

  5788 in stock  

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  BKF AR15 Safety Selector Spring

  Rated 4.96 out of 5
  $0.48 Original price was: $0.48.$0.38Current price is: $0.38.

  15867 in stock  

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  BKF AR15 Ejection Port Cover Rod C-Clip

  Rated 4.86 out of 5
  $0.48 Original price was: $0.48.$0.38Current price is: $0.38.

  1313 In stock

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  BKF AR15 Ejector Roll Pin

  $0.48 Original price was: $0.48.$0.38Current price is: $0.38.

  1253 In stock

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  BKF Magazine Catch Spring

  Rated 4.97 out of 5
  $0.60 Original price was: $0.60.$0.48Current price is: $0.48.

  11589 In stock

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  BKF AR15 Trigger Spring

  Rated 5.00 out of 5
  $0.64 Original price was: $0.64.$0.51Current price is: $0.51.

  13806 in stock  

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  BKF AR15 / AR10 Gas Key Screw

  $0.72 Original price was: $0.72.$0.58Current price is: $0.58.

  923 In stock

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  BKF AR15 Hammer Spring

  Rated 5.00 out of 5
  $0.80 Original price was: $0.80.$0.64Current price is: $0.64.

  23401 in stock  

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  BKF AR15 Firing Pin Retaining Pin

  Rated 4.96 out of 5
  $0.84 Original price was: $0.84.$0.67Current price is: $0.67.

  812 in stock  

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  BKF AR15 Bolt Catch Plunger

  Rated 4.98 out of 5
  $1.16 Original price was: $1.16.$0.93Current price is: $0.93.

  14849 in stock  

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  BKF AR15 Selector Detent

  Rated 4.94 out of 5
  $1.24 Original price was: $1.24.$0.99Current price is: $0.99.

  7348 in stock  

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  BKF AR15 Grip Screw

  Rated 5.00 out of 5
  $1.40 Original price was: $1.40.$1.12Current price is: $1.12.

  1050 in stock  

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  BKF AR15 Carbine Buffer Spring Mil Spec

  Rated 4.97 out of 5
  $1.68 Original price was: $1.68.$1.34Current price is: $1.34.

  4977 in stock  

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  BKF AR15 Takedown/Pivot Pin Detents

  Rated 4.98 out of 5
  $1.68 Original price was: $1.68.$1.34Current price is: $1.34.

  8841 in stock  

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  BKF AR15 Extractor Retainer Pin – Nitride

  Rated 5.00 out of 5
  $1.96 Original price was: $1.96.$1.57Current price is: $1.57.

  187 in stock  

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  BKF AR15 Extractor O-Ring

  $2.00 Original price was: $2.00.$1.60Current price is: $1.60.

  363 in stock  

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  BKF AR15 Receiver Extension End Plate – Mil Spec

  Rated 4.86 out of 5
  $2.28 Original price was: $2.28.$1.82Current price is: $1.82.

  15035 in stock  

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  BKF M16 Mil Spec Auto (Sear Pin Only)

  Rated 4.00 out of 5
  $2.32 Original price was: $2.32.$1.86Current price is: $1.86.

  837 In stock

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  BKF AR15 Mag Release Button

  Rated 4.94 out of 5
  $2.60 Original price was: $2.60.$2.08Current price is: $2.08.

  740 in stock  

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  BKF AR15 Buffer Retaining Pin

  Rated 4.94 out of 5
  $2.64 Original price was: $2.64.$2.11Current price is: $2.11.

  5156 in stock  

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  BKF AR15 Extractor Spring

  $3.00 Original price was: $3.00.$2.40Current price is: $2.40.

  241 in stock  

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  BKF AR15 Extractor Spring Insert

  $3.00 Original price was: $3.00.$2.40Current price is: $2.40.

  411 in stock  

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  BKF AR15 Hammer/Trigger Pins

  Rated 4.97 out of 5
  $3.12 Original price was: $3.12.$2.50Current price is: $2.50.

  5133 In stock

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  BKF M16 A1 Buttstock Screw

  Rated 5.00 out of 5
  $3.96 Original price was: $3.96.$2.57Current price is: $2.57.

  134 in stock  

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  BKF AR15 Receiver Extension End Plate – Nitride

  Rated 4.96 out of 5
  $3.40 Original price was: $3.40.$2.72Current price is: $2.72.

  1805 in stock  

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  BKF Mil-Spec AR15 OR LR308 (DPMS) Receiver Extension Castle Nut Mil Spec

  Rated 4.94 out of 5
  $3.44 Original price was: $3.44.$2.76Current price is: $2.76.

  2401 In stock

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  BKF AR15 Hammer/Trigger Pins – Nitride

  Rated 5.00 out of 5
  $3.52 Original price was: $3.52.$2.82Current price is: $2.82.

  1002 in stock  

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  BKF AR15 Receiver Tension Screw

  $3.68 Original price was: $3.68.$2.94Current price is: $2.94.

  1080 in stock  

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  BKF AR15 Billet Extended Mag Release Button – Basketweave

  Rated 4.93 out of 5
  $3.75 Original price was: $3.75.$3.00Current price is: $3.00.

  Out Of Stock

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  BKF AR15 Billet Extended Mag Release Button – Middle Finger

  Rated 5.00 out of 5
  $3.75 Original price was: $3.75.$3.00Current price is: $3.00.

  Out Of Stock

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  BKF AR15 Billet Extended Mag Release Button – Flag

  Rated 5.00 out of 5
  $3.75 Original price was: $3.75.$3.00Current price is: $3.00.

  9 In stock

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  BKF AR15 Billet Extended Mag Release Button – Punisher

  Rated 5.00 out of 5
  $3.75 Original price was: $3.75.$3.00Current price is: $3.00.

  Out Of Stock

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  BKF AR15 Billet Extended Mag Release Button – $$$

  Rated 5.00 out of 5
  $3.75 Original price was: $3.75.$3.00Current price is: $3.00.

  15 In stock

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  BKF AR15 Billet Extended Mag Release Button – We The People

  Rated 5.00 out of 5
  $3.75 Original price was: $3.75.$3.00Current price is: $3.00.

  Out Of Stock

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  BKF AR15 Billet Extended Mag Release Button – BKF

  Rated 5.00 out of 5
  $3.75 Original price was: $3.75.$3.00Current price is: $3.00.

  11 In stock

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  BKF AR15 Billet Extended Mag Release Button – V

  Rated 4.80 out of 5
  $3.75 Original price was: $3.75.$3.00Current price is: $3.00.

  21 In stock

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  BKF AR15 Lower Spring Kit

  Rated 4.86 out of 5
  $3.88 Original price was: $3.88.$3.10Current price is: $3.10. UPC: 810124540173

  6835 In stock

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  BKF AR15 Carbine Buffer Spring Mil Spec 17-7 Stainless Steel

  Rated 4.95 out of 5
  $3.90 Original price was: $3.90.$3.12Current price is: $3.12.

  1271 In stock

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  BKF AR15 A2 Rifle Length Buffer 17-7 Spring- Mil Spec

  Rated 5.00 out of 5
  $4.00 Original price was: $4.00.$3.20Current price is: $3.20.

  487 In stock

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  BKF M16 Mil Spec Full Auto Disconnect

  $4.00 Original price was: $4.00.$3.20Current price is: $3.20.

  486 In stock

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