Return spring weaker 11 lbs CZ 75- SP-01

By using a weaker breech return spring, better weapon behavior and easier breech manipulation can be achieved.
Suitable for pistols:

CZ 75, CZ 75 B, CZ 75 B SA, CZ 75 BD Police, CZ 75 B Omega,
CZ 75 B Stainless, CZ 75 B New edition,
CZ 75 P-01, CZ 75 P-01 Omega,
CZ 75 SP-01, CZ 75 SP-01 Tactical, CZ 75 SP-01 Phantom,
CZ 75 SP-01 Shadow, CZ 75 SP-01 Shadow Orange,
CZ Shadow 2,
CZ 75 Shadow line, CZ 75 SP-01 Shadow line,
CZ 85, CZ 85 B, CZ 85 Combat, CZ 97, CZ 97 BD,
CZ 75 Tactical Sports, CZ 75 TS Orange,
CZ 75 Czechmate.