That's not entirely correct. In general, springs can take a set (or permanent deformation) from a constantly-applied force through a metallurgical process called "creep." Correctly-designed springs do not suffer from creep from normal use, although I would be leery myself of leaving a Norinco slide permanently open, since you'd be applying more stress to the spring and increasing the chance of inducing creep and causing permanent deformation. If the spring has been properly designed you'd be OK, but why take a chance? Constant cycling (as long as you don't exceed the design stress of the spring) does not cause a set, although it can lead to fatigue failure, which is very rare in the coil springs used in guns.The springs will wear out from cycling, not constant compression.
Springs wear due to rust and use. When brand new and never subjected to a load, they will take a slight set on the first use. Compression after that doesn't really matter much. The springs will wear out from cycling, not constant compression.
Others may tell you horror stories, but they are in general, full of s**t.
How many cars have suffered broken springs from not being jacked up off thier tires every night??
These springs are not designed to be completly compressed for months on end and the analogy of the car is wrong, the car sitting is just how the suspension was desinged to sit.
Take a truck sitting, it could sit for years without affecting ride height, now fill the bed with 1/2 yard of dirt for just a month and check the ride height when its emptied, it`ll be totally sagging .
All springs wear, they are just that a wearing replaceable part.
These springs are not designed to be completly compressed for months on end and the analogy of the car is wrong, the car sitting is just how the suspension was desinged to sit.
Take a truck sitting, it could sit for years without affecting ride height, now fill the bed with 1/2 yard of dirt for just a month and check the ride height when its emptied, it`ll be totally sagging .
All springs wear, they are just that a wearing replaceable part.



























