3D model description
We proudly present APCL-21, the "Jackal". It started as some upgrade parts for LOV21 air pistol and gained its own identity with growth. It fixes all flaws we recognized and adds some new perks.
APCL-21 stands for Air Pistol by R. Cisowski & M. Liberda and the number 21 is a tribute to original pistol and a happy coincidence since work started in 2020 and matured in 2021. Feel free to join https://www.facebook.com/APCL21
OK. Let me list for you it's features :D
- fully replaces original plastic shell
- modular construction - barrel sight line aka compensator mock-up, stabilizing rail, grip, trigger group (in 23+ revision).
- regulated power via changing the tension on the striker spring with a screw
- weights/stabilizers/stand rail under barrel
- trigger adjustment
- one pin/screw grip mount. with bigger handles you can print with bigger hole and an adapter to slide over the CO2 cap.
- fixed LOV21 striker - valve pin misalignment.
- optional locking channel for pellet delivery/locking bolt. requires some drilling.
- interchangeable foresight blades
- extended line of sight (or not, if you rather keep it compact)
- inspection opening for valve pin for quick and dirty leak service and placing "training cap".
- dry fire mode
- you can just print a pipe that fits over CO2 chamber and mould your own grip with basically anything you feel comfortable with.
IMPORTANT: Usage and Safety Disclaimer
- This kit is NOT a toy
- Modifying your LOV21 is at your own risk.
- You need original metal LOV21 parts to make it work (at least for now).
- To the best of our knowledge, this kit does not classify as a weapon in Poland, but users should verify local regulations for using or even building/modifying.
- Users are responsible for ensuring the modified pistol complies with local power and other regulations.
- you will need some extra parts - see BOM below :)
Better safe than sorry!!!
No detailed instructions yet, so if you don't feel up to it, reconsider. Feel free to nag me about it, it should be created shortly. You can also always reach me and ask for help.
Please report any errors in files or the description you find. I am not a native English speaker so mistakes especially in terminology are bound to happen - sorry.
Michał
3D printing settings
IMPORTANT and DISCLAIMER: This is upgrade/conversion kit. Though is has few dozens of happy users this project is still under development. And this is first attempt at making model package for digital sale. If some files are missing or mismatched please report and I will correct them. They were up till now printed on custom printers and profiles. To be on the safe side I strongly recommend printing some calibrations samples. I also tend to under size holes, drilling to right diameter gives better finish. You should be fine with driving wood screws with no prep. Machine screws like tapped holes :) Though with some practice and a little lubricant, you can get away without. Avoid self-taping, they're usually to harsh for mid end polymers. If in doubt, ask first :)
BOM (non printed):
about 25 pcs of 3x18 M3 screws with countersunk head with a flat top, or wood/plastics screws. 18mm are rather hard to procure. 16 will do, or 20 if you don't mind esthetics or file down wood screws. I personally opt for torx wood screws. They do very well in PA12CF15 composite. Check what torque is safe for combination of fastener and material you've chosen. From my experience this will be about 1Nm. If you strip the threads, you can probably repair them with glue.
M5x45-50 screw with washer and nut to secure the heel of grip
M5x20-25 striker spring adjustment
M2x10 or longer screws if you wish to secure foresight blade
2x M4x20 set screws for securing compensator mock-up to the barrel
optional 2x M4x10 to secure barrel in the main body
optional 3x13.8mm pins - press fitted to rigt part ensure repeatable registration between two main body parts.
optional M4-M5 screws for balance weights. on the cheap side you can use just a screw and bunch of nuts.
for 22 revision M3 and M4 set screws to limit trigger blade travel. length depending on personal preference. 25mm good starting point for experiment
8mm rods or pipes for weights rail / stand if you opt for it - 245mm long should get a hair before the 420mm limit for ISSF
For the prints I recommend PA12CF15 composite for almost all parts including middle handle part. As for main handle parts wood composites give very nice result. Stipling is also an option.. Also covering whatever material you have on hand with natural leather gives comfortable grip.
Not all LOV21 are made the same. If loose or tight fit I suggest treating 3D printed parts with with file and glue accordingly.
Grips need some cleaning after printing. Fitting nice grip on LOV21 mechanics proves not to be easy. Some new version will probably emerge in future. Also I encourage to try your own design and publish.
3D models. Two versions of main body. Never with removable trigger group.
Rail under barrel is optional but also, strongly recommended.
23B_TG.stl - trigger group box for standard LOV21 trigger
APCL_handle_L_right.stl - Large grip
APCL_handle_M_right.stl - Medium grip
APCL_handle_S_right.stl - small grip
compLookAlike_extra.stl - further extender for sight line... extender :)
compLookAlike_short.stl - extender for save vertical print
follower.stl - for striker
frontNOstand.stl - simple rail terminator
front_sig0M.stl - front sight blades - let me know if you need other sizes
frontSTAND.stl - front rail terminator with stand and balast mount
lock_handle.stl - handle for the lock. press fit, glue, screw whatever you feel is rigt for you
main_shell_22B_L.stl - main body late 22 revision - normal trigger with two travel screws - left side
main_shell_22B_R.stl - and right
main_shell_23B_L.stl - main body late 23 revision - one pin (or many more) removable trigger box/group - left side
main_shell_23B_R.stl - and right
midRAILmount.stl - weights mount
railMOUNT23.stl - holds rail rods in spacing an attaches to main body. Pin or 3 to 6 screws for mounting
sideBumper.stl - if you lay your pistol on the side you may consider this litle foot. Attach wherever you find recommended with longer screw. In place of normal main body holding screw.
sideBumperTPU.stl - and an insert for it. Intended to print with soft material.
