On this page you will see damage related to the improper method used in blank adapting this G-43. Safely blank adapting a rifle involves controlling the gas in two locations, the gas piston and the muzzle. Threaded muzzle adaptors can be external using a cap that screws on the front sight base, or internal by installing a gas plug into the threaded end of a barrel. The method being examined here was a combination of both. An external adaptor was created to contain an internal gas plug which was threaded into the end of the adaptor. This resulted in the end of the barrel mushrooming creating an obstruction, making this rifle unsafe to fire live ammo.
This barrel diameter was reduced to under 5mm as a result of the gas plug mashing the end of the muzzle.
Here you see the external adaptor and the internal gas plug as it was installed on the barrel.
The gas plug needed to be installed tightly to hold the adaptor securely on the end of the barrel.
You can see that the barrel diameter was reduced creating an unsafe condition. This barrel was recrowned to the proper dimensions.
Gas pressure at the piston was uncontrolled causing excessive wear and tear on the gas rod and all internal parts including the receiver.

From these examples you can see that blank adapting a rifle is serious business. If not done properly, the gas pressures can eventually destroy the rifle or injure someone during an event. When we receive a rifle from a customer, these unsafe conditions are found and corrected. The proper method of controlling gas at the piston first, and then the muzzle is used to create a rifle that fires well with blanks and live ammo.

See page 3