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Questions & Answers
Does this work with a law folder? Expert Answer

Please email us at techsales@opticsplanet.com so we can further answer your question.

by Ben, Gear Expert, February 16, 2021
Does the lrbho work with a bone stock fm9 with 3" barrel? Also, which buffer weight should I use? Expert Answer

The JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group Kit should work fine with an FM9. I recommend using the JPBC-9SL-5H2SS or JPBC-9SL-SP5H2SS model.

by Hunter, Gear Expert, December 19, 2022
Customer Reviews
Helpful Positive Review Aero EPC build by pccnoob, Verified Owner, July 7, 2024
Flawless! I built an Aero EPC 9 ( 8.3in)with jp bolt and Scs( 2 steel + 3 tungsten). The only other non aero parts I used was a rise armament 9mm fcg, radiant raptor charging handle, and radian ambi 45 degree safety selector. This set up ran like a...
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1/1 found this helpful
Helpful Positive Review Premium 9mm Bolt by Mason, Verified Owner, April 8, 2024
Anyone who has ever built an AR-9 knows that getting it to run is challenging. I did a ton of research before building my AR-9, and I did not see this bolt combo being promoted very much, but I also didn't see any negative reviews. I took a chance on...
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1/1 found this helpful
Helpful Positive Review Awesome combo by Oscar, August 12, 2022
JP SCS and bolt combo worked like a charm straight out the box! Very happy that I chose these for my Aero EPC build. Function perfectly! Really happy I went with the short stroke model. Zero FTF and zero FTE !
2/2 found this helpful
Helpful Negative Review LRBHO maybe works by Flyingmark, Verified Owner, May 18, 2022
So let’s talk about the elephant in the room. Your LRBHO only works on certain uppers with this bolt. On my set up it doesn’t. Rather frustrating since that’s why I spent more money on the “enhanced bolt”. This set up does run smooth. You can definit...
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2/4 found this helpful
Most Recent Reviews jp bolt and silent spring by Shawn Hoss, Verified Owner, July 29, 2025
Works great on my EPC 9. Quiet and smooth action. I used a timney single stage PCC trigger and the barrel and upper receiver are from Aero Precision. I hope this is helpful Fast and free shipping thanks optics planet
Most Recent Reviews Best Bcg and buffer spring option by Karl, December 21, 2023
If you can afford it, I would highly recommend this captured buffer spring kit. The Bcg is super easy to clean the spring operated flawlessly, it’s super quiet and smooth. This would be the 3rd one I purchased and runs even better on a ar15.
Read All 7 Reviews
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Product Info for JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group (BCG) Kit - JP Short Silent Capture Spring

Enhanced 9mm AR Bolt, combined with a Silent Captured Spring System.image

New to this revision of our JPBC-9SL and JPBC-9SL-SP bolt assemblies is last round holt open compatibility with our line of short-stroke Silent Captured Springs. This bolt assembly will provide reliable last-round lockback with any compatible receiver such as our GMR-15.

WARNING: California`s Proposition 65

Specifications for JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group (BCG) Kit - JP Short Silent Capture Spring:

Manufacturer: JP Enterprises
Fabric/Material: 416R Stainless Steel
Caliber: 9mm Luger
Condition: New

Features of JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group BCG Kit - JP Short Silent Capture Spring

  • Reduced stroke length for faster firing impulse
  • Designed for optimal function with JP Silent Captured Springs for a heavier operating system that reduces bolt bounce while improving reliability and accuracy
  • Tighter firing pin channel to reduce pin wear
  • High-energy tumble process offers a finer cosmetic finish

Package Contents:

  • JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group Kit - JP Short Silent Capture Spring

JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group (BCG) Kit - JP Short Silent Capture Spring Orderable Models

List of Orderable Models

JP Enterprises EnhancedBolt Bolt Carrier Group BCG, 9mm, Polished SS Finish, Short Stroke SCS System JPSCS2-9SS-5 - 5 Steel Masses, Silver, JPBC-9SL-SP5SS , MPN: JPBC-9SL-SP5SS , UPC: 812872025629 , Code: J5-ABA-EB9KITSH-JPBC-9SL-SP5SS
JP Enterprises EnhancedBolt Bolt Carrier Group BCG, 9mm, QPQ Finish, Short Stroke Heavy SCS System JPSCS2-9SS-5H2 - 2 Tungsten/ 3 Steel Masses, Black, JPBC-9SL-5H2SS , MPN: JPBC-9SL-5H2SS , UPC: 812872025605 , Code: J5-ABA-EB9KITSH-JPBC-9SL-5H2SS
JP Enterprises EnhancedBolt Bolt Carrier Group BCG, 9mm, Polished SS Finish, Short Stroke Heavy SCS System JPSCS2-9SS-5H2 - 2 Tungsten/ 3 Steel Masses, Silver, JPBC-9SL-SP5H2SS , MPN: JPBC-9SL-SP5H2SS , UPC: 812872025636 , Code: J5-ABA-EB9KITSH-JPBC-9SL-SP5H2SS
JP Enterprises EnhancedBolt Bolt Carrier Group BCG, 9mm, QPQ Finish, Short Stroke SCS System JPSCS2-9SS-5 - 5 Steel Masses, Black, JPBC-9SL-5SS , MPN: JPBC-9SL-5SS , UPC: 812872025599 , Code: J5-ABA-EB9KITSH-JPBC-9SL-5SS

JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group (BCG) Kit - JP Short Silent Capture Spring Unavailable & Discontinued Models

List of Unorderable Models

DEMO, JP Enterprises EnhancedBolt Bolt Carrier Group BCG, 9mm, Polished SS Finish, Short Stroke Heavy SCS System JPSCS2-9SS-5H2 - 2 Tungsten/ 3 Steel Masses, Silver, JPBC-9SL-SP5H2SS , MPN: JPBC-9SL-SP5H2SS-DEMO , Code: J5-ABA-EB9KITSH-JPBC-9SL-SP5H2SS-DEMO
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