محطة قطار نحن حيوانات أليفة 12 gauge to 7 62 x39 adapter المستشعر لوح جانبية
12GA to 10MM Shotgun Adapter - Chamber Reducer - Stainless - Free Case & Ship !! | eBay
Could the use of 'adapters' which fit into the chamber and swapping of the bolt, extractor and other parts allow firearms to use different calibers as long as the new cartridge is