Please email us at techsales@opticsplanet.com so we can further answer your question.
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.
The JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group does have a removable weight to be used with the Law Tactical folder. However, the Law Tactical folder requires the Law Folder Specific JP Silent Capture Spring designed to work with that adapter. Unfortunately we currently do not have that model.
The JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group Kit can be used with the Law Tactical Gen 3 Folder but you will need the JP Silent Captured Spring specific for the Law Folder. Unfortunately we currently do not have this model of the JP Silent Captured Spring.
This is what the manufacturer states in regard to 9mm SCS Selection. Ammo choice, configuration and overall feel will dictate the ratio of steel and tungsten masses you choose for your 9mm Silent Captured Spring. Every combination will be different, but here are some general rules:
• Any Silent Captured Spring model will cycle most ammunitions.
However, if you are shooting very low pressure ammo, your
SCS should have all or mostly steel masses.
• Very short barrels like our Ultralight 9mm barrel provide less
port pressure than a longer barrel does. For the same reason
as above, an all or mostly steel SCS is the better choice to
ensure reliable cycling. Be aware that a combination of very
low pressure ammunition and a very short barrel may lead to
unreliable cycling even with the lightest SCS setup.
• A heavier (more tungsten) configuration will cycle more
slowly with a softer felt recoil while a lighter (more steel)
configuration will cycle more quickly with a “snappier” feel.
The JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group Kit does not require a proprietary charging handle. I recommend using the charging handle at the link below, or emailing us at techsales@opticsplanet.com so we can help you out with selecting a charging handle.
https://www.opticsplanet.com/radian-weapons-raptor-ambidextrous-charging-handle-for-ar15-m16.html
Yes, the JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group Kit is compatible with the Maxim Defense Pistol Brace.
The manufacturer doesn't state if the JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group Kit - JP Short Silent Capture Spring will work with that trigger. I recommend contacting the manufacturer to confirm compatibility.
The JP Enterprises EnhancedBolt 9mm AR Bolt Carrier Group Kit has last-round lockback compatibility with both standard and short-stroke Silent Captured Springs.
The JP Enterprises 9mm BCG weighs 13.7 oz. alone.