So to scrub it, one would have to have the Allen wrench. The screws would also must be locktited, or not less than I'd want them locktited. In among the list of videos I watched to the Variation for that military M14/M1a, one of many statements was the rifle needed https://one-up-multiverse-chocola68024.blogspothub.com/31225948/indicators-on-ebr-for-sale-you-should-know