The Hammerli Training Conversion is inserted into the K31 Swiss straight pull rifle once the bolt has been removed, no further modifications are required. It is for indoor practice and is air operated so no license is needed. The whole unit is in excellent condition including the original box and it comes with a tin of 4.4mm steel BB’s which can be collected and reused if needed.
The Hammerli Training Conversion is inserted into the K31 Swiss straight pull rifle once the bolt has been removed, no further modifications are required. It is for indoor practice and is air operated so no license is needed. The whole unit is in excellent condition including the original box and it comes with a tin of 4.4mm steel BB’s which can be collected and reused if needed.