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Page AR-15 » Rimfire and Pistol Calibers
AR Sponsor: bravocompany
Posted: 5/8/2024 4:19:39 PM EDT
Does anyone have a 5.7 rdb that can comment on the ejector service life? We have all heard or experienced how short 9/40/10mm ejector life is.  .45 doesn't seem to share this. Was wondering how the 5.7 holds up being a high pressure cartridge also. Thanks
Link Posted: 6/2/2024 6:23:45 PM EDT
[#1]
I put together an upper using the CMMG 8” 5.7 RDB barrel/ bolt combo.  I’ve shot approximately

500-600 rounds with zero malfunctions.  Everyone who tries it really enjoys shooting it.
Page AR-15 » Rimfire and Pistol Calibers
AR Sponsor: bravocompany
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