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Complete Xtreme Performance Bolt (XPB) Carrier Group Complete
Complete Xtreme Performance Bolt (XPB) Carrier Group Complete


 
Purchased Separately: $219.99
Your Price: $219.99
Sale Price: $159.99
Savings: $60.00

Stock Status:In Stock

Availability: Usually Ships in 24 to 72 Hours
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Description
 
The Sharps Xtreme Performance Bolt (XPB) Carrier Group Complete is comprised of our patent Relia-bolt, and our Balanced Bolt Carrier. Both are machined out of S7 tool steel. The XPB undergoes a 24-hour thermal cycle proprietary heat treatment, and is finished with the DLC (Diamond Like Carbon) Coating. 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.

Technical Data:

Bolt and carrier: S7 tool steel, shot peened and DLC coated (U.S. Patent No. 9,863,729)
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 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 over 200ft/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 methid: PVD UBM/PACVD
Friction vs Steel, dry 0.1
Color: Black

Made in the USA





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Average Rating: 5 of 5 Total Reviews: 38 Write a review »


  0 of 0 people found the following review helpful:
 
First time purchase January 18, 2019
Reviewer: Shane from Strafford, NH United States  
After hearing many good things about Sharps (XPB) Carrier Group in reviews. I gave it a try in my newest build and everything I heard about it was true. I couldn't be more satisfied with it. Additionally the people at Sharps were extremely pleasant and helpful. Something which is very much laking in company's today.

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  0 of 0 people found the following review helpful:
 
bolt carrier group January 17, 2019
Reviewer: Phil Norton from Oklahoma City, OK United States  
Badass

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  0 of 0 people found the following review helpful:
 
new DLC XPB January 17, 2019
Reviewer: Isan Simpson-Huggard from Port Angeles, WA United States  
Very fast shipping. Answered my questions quickly.  As far as the DLC XPB...man it's easily the nicest BCG I've ever held...bar none.  I've even spent up and gone with a $350 BCG in the past and the machining on the Sharps XPB is just incredible. The best on the market.  Going to be buying them for all my rifles.

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  0 of 0 people found the following review helpful:
 
Outstanding BCG ! January 17, 2019
Reviewer: RC from Bailey, NC United States  
The XPB carrier group from Sharps is the ABSOLUTE best you can buy!! I have run about 300 rnds though it with zero issues. It is incredibly slick and cycles VERY nice. The DLC coating is very well done and makes cleaning a breeze and should last a very very long time with no issues. I would recommend this BCG to anyone. If you are on the fence about this one , go ahead and jump off and get it ... absolutely no regrets!

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  0 of 0 people found the following review helpful:
 
January 14, 2019
Reviewer: Anonymous Person from Lindsay, CA United States  
I just want to say thank you.. i received my item and i'm satisfied with my item.. it was a pleasure to do business with you and would again. Many Thanks!

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