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Mitchell Defense Enhanced AR-15 Carpenter 158 HP/MPI Bolt 5.56mm NATO/.223 Remington/.300 BLK Black
Sold byOptics Planet•Posted Apr 27, 2026
$157.50
$175.00
You save $17.50 (10% off)
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Deal Summary
- Currently in stock.
- Caliber: 300blk
- Category: parts
- SKU: 6PS-ABA-VGB7-651001
- Brand: Mitchell Defense
Price History
Deal Details
Mitchell Defense Enhanced AR-15 Carpenter 158 HP/MPI Bolt 5.56mm NATO/.223 Remington/.300 BLK Black. 56 NATO .223 Remington and .300 BLK platforms. Machined from Carpenter 158 steel and HP/MPI tested it offers superior strength and fatigue resistance. A billet extractor with O-ring ensures stable extraction while SP4-coated gas rings provide improved lubricity and increased longevity. This bolt is an excellent upgrade or replacement for AR-15 rifles that require consistent long-term reliability.