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Upgrade your AR-15 with the reliable .45 ACP Stern Defense SD-BU45 Bolt Carrier. ⚙️ Durable, precision-engineered for optimal performance!

STERN DEFENSE AR-15 SD-BU45 BOLT CARRIER .45ACP BLACK - STERN DEFENSE AR-15 SD-BU45 BOLT CARRIER .45ACP BLACK

850001176019 100039216

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The Stern Defense AR-15 SD-BU45 Bolt Carrier is specifically engineered for .45 ACP pistol-caliber carbines, ensuring reliability and durability.
  2. It is made from 8620 AISI steel with a 4140 billet-steel extractor, features a Glock cut, and is treated with a manganese-phosphate finish for enhanced performance.
  3. The bolt is compatible with single-stage triggers with short resets, Law Tactical folding-stock adapters, and Echo triggers, but requires an 11-ounce or heavier buffer and an upper receiver with an enlarged ejection port.

Attributes

  • Cartridge: 45 Auto (ACP)
  • Finish: Black
  • Make: AR-15
  • Delivery weight: 0.499kg
  • Shipping height: 64mm
  • Shipping width: 64mm
  • Shipping length: 203mm
  • UPC: 850001176019

Item details

Made in USA
US export classification: I(g)
  • Specifications:
  • Cartridge: 45 Auto (ACP)
  • Finish: Black
  • Make: AR-15
219.9 219.9 1 GBP
219.9 GBP £219.90

Prices inclusive of duty & VAT.

Product no.: 100039216

Mfr. No.: 004-SD BU45-D1-

850001176019 Having a .45 ACP pistol-caliber carbine requires the use of a bolt that's designed to provide reliable operation with the round, and the Stern Defense AR-15 SD-BU45 Bolt Carrier is purpose-built to provide the reliable, dependable, durable operation needed in a big-bore PCC. Each Stern Defense AR-15 SD-BU45 Bolt Carrier is machined from 8620 AISI steel and features a 4140 billet-steel extractor that ensures ejection every time. The carrier features a Glock cut and is treated with a manganese-phosphate finish. The bolt works in all mil-spec and Glock-pattern AR-15 upper receivers and is compatible with standard AR-15 charging handles. The carrier includes the firing pin, spring, retaining pin, extractor and extractor spring. One of the stand-out features of this Stern Defense AR-15 SD-BU45 Bolt Carrier is the new bolt design that's compatible with single-stage triggers that have short resets. The bolt is compatible with the Law Tactical folding-stock adapter, as well as the Echo trigger. The bolt must be used with an 11-ounce or heavier buffer, and upper receivers must have an enlarged ejection port to accommodate the large-diameter brass. The bolt is compatible with JP Silent Capture springs, but Stern Defense does not recommend this use, as .45 ACP can damage the JP system.
Not available - Is a 'Call to order' product.

Not available.

Is a 'Call to order' product.

Not available.

  • Specifications:
  • Cartridge: 45 Auto (ACP)
  • Finish: Black
  • Make: AR-15

Description:

A Bolt-Carrier Group Designed for .45 ACP Pistol-Caliber Carbines
Having a .45 ACP pistol-caliber carbine requires the use of a bolt that's designed to provide reliable operation with the round, and the Stern Defense AR-15 SD-BU45 Bolt Carrier is purpose-built to provide the reliable, dependable, durable operation needed in a big-bore PCC. Each Stern Defense AR-15 SD-BU45 Bolt Carrier is machined from 8620 AISI steel and features a 4140 billet-steel extractor that ensures ejection every time. The carrier features a Glock cut and is treated with a manganese-phosphate finish. The bolt works in all mil-spec and Glock-pattern AR-15 upper receivers and is compatible with standard AR-15 charging handles. The carrier includes the firing pin, spring, retaining pin, extractor and extractor spring. One of the stand-out features of this Stern Defense AR-15 SD-BU45 Bolt Carrier is the new bolt design that's compatible with single-stage triggers that have short resets. The bolt is compatible with the Law Tactical folding-stock adapter, as well as the Echo trigger. The bolt must be used with an 11-ounce or heavier buffer, and upper receivers must have an enlarged ejection port to accommodate the large-diameter brass. The bolt is compatible with JP Silent Capture springs, but Stern Defense does not recommend this use, as .45 ACP can damage the JP system.

Restrictions

  • Is a 'Call to order' product.

Top takeaways

  1. The Stern Defense AR-15 SD-BU45 Bolt Carrier is specifically engineered for .45 ACP pistol-caliber carbines, ensuring reliability and durability.
  2. It is made from 8620 AISI steel with a 4140 billet-steel extractor, features a Glock cut, and is treated with a manganese-phosphate finish for enhanced performance.
  3. The bolt is compatible with single-stage triggers with short resets, Law Tactical folding-stock adapters, and Echo triggers, but requires an 11-ounce or heavier buffer and an upper receiver with an enlarged ejection port.

Attributes

  • Cartridge: 45 Auto (ACP)
  • Finish: Black
  • Make: AR-15
  • Delivery weight: 0.499kg
  • Shipping height: 64mm
  • Shipping width: 64mm
  • Shipping length: 203mm
  • UPC: 850001176019

Item details

Made in USA
US export classification: I(g)

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