


Tx22 - Custom Chassis and FRT Lessons Learned
Started off with a gen 1 Tx22, made the following changes:
- Tried many different chassis and ended up designing one that suited my needs. Printed in PET-CF.
- Designed a charging handle that mounts to a cheap eBay optic plate (that attaches to adjustable sight slots). It is filled with 2oz of weights.
- Sound forwarding muzzle device that extends far past my hand/chassis for extra protection
- M-lok picatinny rails with cheapo optic, found it much easier to print upside down if it's flat.
- Lakeline FRT, striker housing, buffered stainless recoil assembly (not the +2 spring rate, purchased the wrong one)
- Tandemkross extractor
- Galloway striker spring
Getting it to run effectively took a lot of trial and error. Tried nearly every magazine and extension available, springs (OEM, Wolff, Amazon), and follower combinations (OEM, printed OEM & printed "enhanced") and would get 1-6 rounds out before a jam. In combination with all sorts of ammo (CCI Mini-mags (HP & RN), CCI stingers, Fiocchi CPHP, Armscor RN, Remington Thunderbolt, Federal Champion HP, a bunch more).
Found the following ammo and magazines to run the best (dumping the whole mag without fail):
- OEM 16rd mag with Titan +15 extension and Titan follower with 13" of Wolff 65064 spring (the only combination the Wolff spring worked great on)
- Promag 34rd with Titan follower and stock Promag spring
Using the following ammo ranked by best results:
- CCI Clean-22 RN (1235 fps, 40 grain)
- Winchester Super X Game & Target RN (1300 fps, 40 grain)
- Remington Golden Bullet RN (1255 fps, 40 grain)
Every other combination just refused to work. They all performed slightly better with fresh dry mag lube (WD-40 dry lube with PTFE). Looks like it likes copper plated round nose that is 40 grains with at least 1235+ FPS. Many range trips taken to get this thing to run right. Also, clean your Tx22 after every 150 rounds or so, this thing gets DIRTY. Hope this helps!
Now I just gotta figure out why my 10.5" AR refuses to run with a ARC-Fire v2....