Stern Defense Stern Defense SD BU40 Bolt Carrier for AR15/M16, Black, 004-SD BU40-D2-MAR-15

Specifications

Mfr data
SKU
004SDBU40D2M
Stern DefenseSKU 004SDBU40D2M · LCL-P-254884

Stern Defense SD BU40 Bolt Carrier for AR15/M16, Black, 004-SD BU40-D2-M

These Bolt Carrier Groups made by Stern Defense are built out of 8620 AISI steel and Mag-Phosphate finished to ensure a strong reliable part that will withstand repeated firings and give you extended service life.

BCG Parts
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