A designer has released a first beta 3D-printed chassis for the TX22 after rejecting existing two-piece options, saying the new part goes together and comes off without difficulty. STP files may follow once further testing confirms the design. Feedback on problems or ideas is invited, with a running list of planned changes.

Pictures also show a db-firearms DA Brace originally made for the DB Alloy that required alteration to mount on a standard rear rail, plus an FFFTech Rimfire Redirectinator 9000 flash can. Later file updates corrected STL scaling, added an extended chassis for weighted back plates, loosened pic-rail and lock-tooth fit, chamfered the locking clip, added charge-handle clearance and left-hand or ambidextrous parts, and introduced side pic-rail versions, a Centaur logo, an untested tall weighted charge handle, and a SendCutSend weight option.