Sounds a bit arbitrary.  Show us your research.  You would exclude these guns from CCP?

Model Barrel Length Cartridge Magazine Capacity Length Height Weight
Pro Carry II 4.00 45 7 7.70 5.25 28.0
M&P 4.00 45 8, 10 7.50 5.50 27.7
Officers Model 3.50 45 6, 7 7.50 5.50 34.0
H&K VP9 4.09 9   7.34 5.41 25.6
H&K 45 Compact 3.94 45 10 7.24 5.51 28.5
M&P 4.00 45 8, 10 7.50 5.50 27.7
Officers Model 3.50 45 6, 7 7.50 5.50 34.0
H&K P30 3.85 9, 40 15, 13 7.12 5.43 26.8
H&K VP9 4.09 9   7.34 5.41 25.6
Sig P229 3.90 9, 357, 40 13, 12, 12 7.10 5.40 32.0
H&K P2000SK 3.26 9, 40 10, 9 6.40 5.40 24.0
Keltec P3AT 2.70 380 6 5.20 3.50 8.3