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Sharps XPB Carrier Group Complete
Sharps XPB Carrier Group Complete
Sharps Rifle Company XPB (Xtreme Performance Bolt) Carrier Group Complete


 
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The Sharps Xtreme Performance Bolt (XPB) Carrier Group Complete is precisely machined from S7 tool steel. The XPB undergoes a 24-hour thermal cycle proprietary heat treatment and is finished with DLC (Diamond Like Carbon) Coating.
Your Price: $219.99
Sale Price: $169.99
Savings: $50.00

Stock Status:In Stock

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Description
 

The Sharps Xtreme Performance Bolt (XPB) Carrier Group Complete has the same design as the Balanced Bolt Carrier Group and is precisely machined from S7 tool steel. The XPB undergoes a 24-hour thermal cycle proprietary heat treatment and is finished with DLC (Diamond Like Carbon) Coating. The XPB Carrier Group Complete displays the SRC logo machine cut and visible when the ejection port door is open. The XPB fits standard AR-15/M16/M4 rifles chambered in .223/5.56mm, 25-45 Sharps and 300 Blackout calibers.

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Technical Data
Bolt: S7 Tool steel, shot peened DLC coated (U.S. Patent No. 9,863,729)
Bolt Carrier:
S7 Tool steel, shot peened and DLC coated
Gas Key: 4130 Steel, attached with Grade 8 hardware, properly staked and DLC Coated
Cam Pin: 4340 Steel, Manganese Phosphate coated
Firing Pin: Mil Spec firing pin made of 8740 steel, center‐less ground and Hard Chrome coated
Extractor: 4340 Steel, Manganese Phosphate coated
Ejector: S7, shot peened and Manganese Phosphate coated
Extractor Pin: S7, shot peened and Manganese Phosphate coated
Mil-Spec Extractor and Ejector Springs, Firing Pin Retaining Pin, Gas Rings

Batch 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


Technical Data on DLC Coating

Coating thickness: 2 - 4 Microns
Hardness HV 0.05: HRC 80+
Deposition method: PVD UBM/PACVD
Friction vs. steel, dry: 0.1
Color: Matte Black




Strongest AR15 BCG XPB Extreme Performance Bolt
World's Toughest AR15 BCG?! 😍SRC XPB BCG Review!
Average Rating: 5 of 5 Total Reviews: 252 Write a review »


  0 of 0 people found the following review helpful:
 
XPB BCG July 16, 2018
Reviewer: Zane Miller from Highlands Ranch, CO United States  
2nd one of these I’ve used in AR builds and those won’t be the last.  Great attention to detail on these BCGs.  They cycle smoothly. I notice better accuracy with this model over a lot of other BCGs that I’ve used.  I know of 2 more that will be purchased in the near future.  Keep up the outstanding workmanship Sharps!!

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  0 of 0 people found the following review helpful:
 
XPB BCG. July 16, 2018
Reviewer: Matthew Gailey from Roy, UT United States  
Bought a XPB BCG. It’s exactly as described!! Fast shipping, great  workmanship, solid product. Will buy from sharps rifle company again.

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  0 of 0 people found the following review helpful:
 
Best BCG July 8, 2018
Reviewer: Kent from Kissimmee, FL United States  
The SRC BCG is the best bolt carrier group I've ever seen and owned.  The engineering, materials and workmanship are of the highest quality on the market.  The Sharps Extreme Bolt Carrier Group will withstand the most hard use under the most extreme conditions and continue to perform flawlessly.  I would highly recommend this extreme quality and critically important component be incorporated into all of your ARs, as I have done.

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  0 of 0 people found the following review helpful:
 
XPB BCG July 8, 2018
Reviewer: John Smith from BILOXI, MS United States  
this is a well crafted part to be added to my custom AR-15 build. this is part of the heart of the rifle so go with the best.

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  0 of 0 people found the following review helpful:
 
Great! July 7, 2018
Reviewer: Stephen Friend from Grayson, GA United States  
The product is perfect! I was shipped a second BCG by accident. When I let Sharps know they were going to send me a return label but offered a discount if I want to purchase it. Which I did, or a friend did anyways.

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