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Questions & Answers
Will this work for 300 blackout Expert Answer

Yes, the Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group will function as intended with 300 Blackout.

by Ethan, Gear Expert, May 15, 2023
What type of coating is on the bolt carrier? Is it phosphate or nitrided? Expert Answer

The Sharps Rifle Co. AR-15 Xtreme Performance Bolt XPB Carrier Group undergoes a 24-hour thermal cycle proprietary heat treatment, and is finished with the FDE (Flat Dark Earth) ZrN (Zirconium Nitride) Coating.

by Ethan, Gear Expert, September 8, 2022
Customer Reviews
Helpful Positive Review
top tier BCG for AR 15 Weapon by Stinky, Verified Owner, May 14, 2024
this is a great product top tier, quality is great and function so far out does most BCG’s, smooth operation and allot easier clean up. optics planet did awesome with order ��✊ quick . so yes it is worth it big time. Hey! Stinky don’t play this is th...
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1/1 found this helpful
Helpful Positive Review
Love this BCG by Hahnster, Verified Owner, March 29, 2024
I love this bcg, I immediately put it through 1000rds in a day and the finish held up and made it super easy to clean!
2/2 found this helpful
Helpful Positive Review
I swapped this bolt on a full auto DDM4V7 that is suppressed by an RC2. The original DDM4V7 bolt had a lug sheer off after about 28K rounds of 55gr were sent. I also noticed the gas key came loose. I decided to shop around and grabbed this bolt as w...
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1/1 found this helpful
Helpful Positive Review
Replaced a factory DDM4V7 BCG after a bolt lug sheered off and the gas key fell out of my DD's factory BCG. Got that RMA'd and ordered this over a year ago. Thought I'd review after a beating Handled 12k rounds of suppressed-only, overgassed use wit...
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4/4 found this helpful
Most Recent Reviews
sharps xpb bolt carrier group by ttocx, Verified Owner, June 5, 2025
Love it. Got two for me and the lil lady ... Solid product and eazy to clean. A few years later, still looking like new.
Most Recent Reviews
Great BCG, good product, great color by Juan Jaramillo, Verified Owner, January 6, 2024
Excellent high quality product, sharp Rifle Company is geat gun maker of Bolt carrier
0/1 found this helpful
Read All 11 Reviews
Color: Flat Dark Earth/Black Fabric/Material: Steel Carrier Material: S7 Tool Steel Bolt Material: S7 Tool steel Caliber: .223 Remington Gun Make: AR Platform Gun Model: AR-15 , M4 , M16 Condition Details: Other Condition: Factory DEMO Condition Quality: Fair

Code: 2HD-BCG-SP4-SRCXPBCG-BI-EDEMO-OT-D

MPN: SRCXPBCG-BI-EDEMO2

Product No Longer Available

Product Info for Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group (BCG)

The Sharps Xtreme Performance Bolt (XPB) Carrier Group BCG Complete is comprised of their patented Relia-Bolt and their Balanced Bolt Carrier. Both are machined out of S7 tool steel. The XPB undergoes a 24-hour thermal cycle proprietary heat treatment.image

The XPB carrier displays the SRC logo machine cut and is visible when the ejection port door is open. The XPB fits standard AR-15/M16/M4 rifles chambered in .223/5.56, Sharps 25-45, and 300 Blackout calibers.

Features of Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group

  • MPI and HPT tested
  • Tensile strengths of 1550-1600 mpa, or 220,000-235,000 psi.
  • Toughness of over 200 ft./lb. Charpy C-Notch
  • HRC of 46 yields a 15% increase in hardness at the same toughness comparing to Carpenter 158 & 9310
  • Mil-Spec Extractor and Ejector Springs, Firing Pin Retaining Pin, Gas Rings

Package Contents:

  • Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group

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Related Products to Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group (BCG)

Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group (BCG) Unavailable & Discontinued Models

List of Unorderable Models

  • USED Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group BCG, Flat Dark Earth Carrier with DLC Black Bolt, SRCXPBCG-BI, EDEMO2, Condition Fair, Other , MPN: SRCXPBCG-BI-EDEMO2 , Code: 2HD-BCG-SP4-SRCXPBCG-BI-EDEMO-OT-D
  • Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group BCG, Flat Dark Earth Carrier with DLC Black Bolt, SRCXPBCG-BI , MPN: SRCXPBCG-BI , UPC: 856659004407 , Code: 2HD-BCG-SP4-SRCXPBCG-BI
  • Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group BCG, Flat Dark Earth Carrier and FDE Bolt, SRCXPBCG-FDE , MPN: SRCXPBCG-FDE , UPC: 856659004414 , Code: 2HD-BCG-SP4-SRCXPBCG-FDE
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