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Best bcg for 45 i could find - Stern Defense SD BU45 .45 ACP Bolt Carrier for AR-15 Glock-Pattern Upper Receiver

by HC, Verified Owner from TX, United States Written on December 4, 2025
Review for Stern Defense SD BU45 .45 ACP Bolt Carrier for AR-15 Glock-Pattern Upper Receiver
Stern Defense SD BU45 .45 ACP Bolt Carrier for AR-15 Glock-Pattern Upper Receiver
Stern Defense SD BU45 .45 ACP Bolt Carrier for AR-15 Glock-Pattern Upper Receiver
$210.00 $150.65 Save 28%
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HC's Review of Stern Defense SD BU45 .45 ACP Bolt Carrier for AR-15 Glock-Pattern Upper Receiver

This is used in a Pro2a and Tacfire 45acp uppers, and functions dependably in both. No misfeeds or problems cycling in either. Very well built. Much better than the Tacfire version which came with one of my uppers, that one constantly misfed hollow points and jammed. Switched to this Stern one and all those problems disappeared.
Would Recommend: Yes
Was it helpful to you? Yes | No
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