Sheer mass and weight. The action, as in most semi auto pistols, is a balance of energy overcoming mechanical impediments and the mass of the reciprocating parts. Too much mass to overcome results in an inconsistent or simply non functional system. All these factors can often be managed through compoments such as spring tention, locking/unlocking geometry, projectile energy, mass/weight of all action parts, etc.
Drastically changing one component of an already balanced system will affect it adversely.
|