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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: $164.99
Savings: $55.00

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
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
Daily Shooter: Sharps Rifle Co XPB BCG Review and Testing
Average Rating: 5 of 5 Total Reviews: 103 Write a review »


  0 of 0 people found the following review helpful:
 
XPB BCG December 18, 2017
Reviewer: Glenn West from San Mateo, CA United States  
Awesome product!!!
Service was great and shipped super fast. Gets my five star rating all the way. I have about three hundred round through and the BCG runs smooth as silk. This is now my one and only from here on out on all my builds it's a little expensive but is really worth every penny and so much more. You will not be sorry - promise.

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  0 of 0 people found the following review helpful:
 
Is very good part. I am happy and thanks for your December 18, 2017
Reviewer: Phillip Markov from Aurora, CO United States  


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  0 of 0 people found the following review helpful:
 
Good product fast shipping December 15, 2017
Reviewer: Jasd from City of Industry, CA United States  


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  0 of 0 people found the following review helpful:
 
XPB Almost perfect December 14, 2017
Reviewer: Ronald Fallis from Pleasantville, IA United States  
Ordering was easy. Didn't take too long to get it. But when I did I noticed the staking of the gas key was a little weak. Don't get me wrong, there was just enough metal squeezing against the knurling the get the job done, but it could have been better. I contacted customer service and they explained that they replaced the staking key to make the staking look better. For future BCG'S.  They were very helpful and offered to give me a refund if I wanted. Since the staking wss adequate and the rest of the BCG was absolutely immaculate, I choose to keep it. This is still the nicest BCG I've ever seen. If you are thinking of buying this product, then just do it. You won't regret it.

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  0 of 0 people found the following review helpful:
 
Awesome BCG!!! December 13, 2017
Reviewer: Anonymous Person from Toledo , OH United States  
I have ran 1,000+ rds through my AR with this bolt and no malfunctions. I'm building an AR pistol and I'm going to throw one of these in it.

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