A01 frame vs. Shadow 2/TS frame

[MoRivera]

Anyone who would be in the know, are they two completely different frame sizes?  More specifically, a thumb safety for an A01 would or wouldn't work in a Shadow 2 or TS, or vice versa?  Thx.

[Philipl]

The distance from the front of the sear cage to the back is 26 mm on all 3. The sear cage on the Shadow 2 and TS 2 look identical, the AO1 slightly different.

Frame rail length Shadow 2 7 5/16",  TS2 7 13/16" and AO1 7.5"

Based on the sear cage similarities I suspect safeties are interchangeable BUT am not going to disassemble to find out.

[MoRivera]

Thanks!  The frame width is what concerns me, and it look like the A01's is narrower than the other two.

[Philipl]

The frame width is

AO1  outside 26.55mm   inside 20.45

Shadow2  27.82  20

TS2         27.8  20

Interestingly th AO1varied 0.26 mm in measurements along the length of the slide and the other 2 0.05

[MoRivera]

Thank you again! 

[Keepmsharp]

Very interesting to see them side by side with the measurements. Thank you!

[Stuart]

TSO is wider frame, SHadow 2 is wider at top than A01
A01 uses tumbler style safeties and appropriate sear cage for them.

TSO and Shadow 2 use D style safeties and sear cage.