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THE BREAKDOWN
We're breaking down the internals based on the two types of bolt carriers: integrated and non-integrated bolts. Integrated carriers have the bolt face machined directly into the carrier (common blowback 9mm, 40S&W, 45ACP, and 10mm carriers). Non-integrated bolts cover your typical 5.56, 300BLK, 7.62x39, and the CMMG radially delayed blowback calibers.
The 3.5 version will not require any modification to your carrier or end plate. Just install the Kentri in place of your standard buffer, spring, and receiver extension.
Note: The tubes shown in the photos on this page are are pre-production aesthetics.