XS sights are fast on target but they are so different that you have to train with them a lot.
And forget your 25 and 50 yard accuracy remaining tight.
Mine dropped so I dropped the XS sights and went back to the post/goal post sights again.
Novel idea but not practical.
The Seattle SharpShooter - G27/33, G19, G29, G20, G21, G34, G35
Reload .223, 9mm, 40SW, 357 SIG, 10mm, 44Mag, 45 ACP Lately?