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to provide a fast, secure, and enjoyable experience. by Patrick, from AL, United States Asked on May 4, 2020
Yes, you can use the A5 buffer and rifle spring in all three of our A5 Receiver Extension (RE-PA5, RE-A5 and RE-10/A5SR). Although each build may call for different A5 buffer weight to get the best results. Please keep in mind you can not use the A5 Receiver Extension with a carbine buffer and spring it will cause damage to the firearm.