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6/21/24 : Last day of the Grads & Dads 2024 Sale - 10% off Parts & Accessories / 5% off Firearms. *some exclusions may apply*

Battle Arms Development Complete Enhanced Lower Parts Kit

Lower Parts Kit

Out of stock

Battle Arms Development Complete Enhanced Lower Parts Kit


BAD-LPK-PKX Enhanced Complete Lower Parts Kit 


BAD-EBC-IC Enhanced Bolt Catch

  • Cost friendly alternative
  • Lightweight but Robust Design 0.39oz
  • Compatible with Norgon Ambi-Catch Without Interference
  • Raised "T-Shaped" Heel Provides Positive and Distinctive Control Surface for Bolt Lock Back
  • Bold Horizontal and Diagonal Serrations Provides Positive Purchase
  • 8620 Heat Treated Cast Steel
  • Black Phosphate Finish


BAD-E4S-IC Enhanced Single Sided Safety Selector 

  • Based on our famous BAD-ASS Ambidextrous Safety Selector with distinctive and diagonal serrations.  
  • Single Side Safety Selector (0°-90° SEMI AUTO)
  • Fit all Mil-Spec Dimensioned AR-15 Lower Receiver
  • Black Phosphate Finish
  • Investment Cast 8620 Heat Treated Steel
  • MADE IN U.S.A.


BAD-EMC-IC Enhanced Magazine Catch

  • Process: Investment Cast (Same Process as Mil-Spec)
  • Material: 8620 Heat Treated Steel Finish: Black Phosphate Finish
  • Construction: One Piece Engineering (Not Two-Piece)
  • Design: Lightweight Fluted Design
  • Compatibility: Compatible with Mil-Spec Magazine Release Button, BAD-EMR, BAD-EMMR, etc.
  • Length: Shorter Threaded Pin to Reduce Installed Magazine Button Profile of Solid Face Magazine Release Buttons
  • Weight: 0.25 oz (v.s. 0.32 oz Mil-Spec)


BAD-EMR Enhanced Magazine Release

  • Precision CNC Machined for billet 7075-T6 Aluminum (not 6061) in an anodized BLACK finish, the BAD-EMR features an unique, fully solid "V" shaped button face with horizontal serrations (no through hole).
  • The concave V-Groove button face offers excellent ergonomic feel and self-centers the index finger as pressure is applied.  The horizontal, parallel serrations helps slippage in the vertical orientation while minimizing drag in the horizontal direction for finger retraction.
  • The BAD-EMR also features a lightweight skeletonized back to offset the weight gained from the fully solid button face and slightly increased height to equal the weight of the standard mil-spec magazine release (approximately 0.002 lbs).  BAD-EMR is compatible with all lower receivers that accepts mil-spec magazine release buttons.


BAD-ATG™ Adjustable Tactical Grip

  • Adjustable Tactical Grip easily adjusts, with the included hex key, to each of the three most popular industry proven angles (17, 25, & 33 degrees) using the Patent Pending adjustable angle mechanism.
  • The textured finger grooves and ribbed back-strap optimize comfort and provide positive control.  
  • Dimpled air gaps help keep hand dry while offering firm grip texture.  
  • Only 3.0oz complete with screw and washer!

BAD-EPS Takedown and Pivot Pins:

  • AR15 / M16 / M4 Compatible - Fits all AR15/M16/M4 lower receivers with mil-spec .250in diameter front pivot and rear takedown pin holes.
  • Patent Pending Pivot Pin & Takedown Pin Head Designs - Greatly improved gripping surface and pull strength without the use of oversized heads.
  • Low Profile Pin Heads - Low drag and never in the way. Lower profile than mil-spec pinheads.
  • Ambidextrous Safety Compatible - The Enhanced Takedown Pin (BAD-ETP) head design does not obstruct the use of the right side ambidextrous safety selector lever.
  • Extended Pin Tips (+0.030" over mil-spec) - Added tip length noticeably aids in starting/pushing the pins out from the left side of the receiver, without undue protrusion.
  • Bullet Tip Guide - Cone shaped recess at both pin tips prevent accidental bullet or tool slip and reduced the chance of scratching/damaging of the receiver.
  • Patent Pending EZ Guide Channel & Magnetic Assist Install - Easy, hassle-free magnet assisted installation of the EPP (Enhanced Pivot Pin). No more lost detents and springs.
  • Each BAD-EPS comes with (1) BAD-ETP, (1) BAD-EPP, (2) KNS hardened stainless steel detents, (2) 17-7 nickel plated stainless steel pin springs, and (1) high-strength neodymium magnet for hassle free magnet assisted installation of the Enhanced Pivot Pin (BAD-EPP).



  • Qty 1 Mil-Spec Trigger
  • Qty 1 Mil-Spec Hammer
  • Qty 1 Disconnector
  • Qty 1 Disconnector Spring
  • Qty 1 Hammer Spring
  • Qty 1 Trigger Spring
  • Qty 2 Takedown / Pivot Pin Springs
  • Qty 2 Takedown / Pivot Pin Detents
  • Qty 1 Bolt Catch Detent
  • Qty 1 Bolt Catch Spring
  • Qty 1 Trigger Guard
  • Qty 1 Trigger Guard Roll Pin
  • Qty 2 Hammer / Trigger Pins Mil-Spec
  • Qty 1 Safety Selector Detent
  • Qty 1 Safety Selector Detent Spring
  • Qty 1 Magazine Catch Spring
  • Qty 1 Buffer Retainer Detent
  • Qty 1 Buffer Retainer Detent Spring
More Information
Product Type Lower Parts Kit
Manufacturer Battle Arms Development
Option AR-15

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