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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 / Hyper Black




Daily Shooter: Sharps Rifle Co XPB BCG Review and Testing
Average Rating: 5 of 5 Total Reviews: 33 Write a review »


  0 of 0 people found the following review helpful:
 
Initial impression September 19, 2017
Reviewer: Richard Lopez from Bethlehem, GA United States  
It certainly looks sharp... Pun intended. My first outing with it I was admittedly using cheap 5.56 Wolf ammo, and of course had some dilemmas, as in failure to feed, double feeds, stove pipe... I also had changed out the stock and buffer so I can't say it was any fault other then the ammo... after making some minor adjustments that should not have made any real difference, I went and used american eagle and the last of my wolf. the eagles did not miss a beat, the wold had one under charged round (audible difference was clear) and one failure to feed.
I am about 600 rounds into this bolt and I see not wearing to speak of. I think my upgrades in stock and buffer have made my AR fickle. At least against the cheap wolf. I will continue testing as time and money permit.

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  0 of 0 people found the following review helpful:
 
Most amazing BCG I have ever had! September 18, 2017
Reviewer: James Crandall from Brighton, CO United States  
What can I say this Bolt Carrier is just awesome so much smoother than any milspec or black nitride well worth the money you rock the kazba sharps!

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  0 of 0 people found the following review helpful:
 
Great Service! September 18, 2017
Reviewer: Lawrence Chu from Katy, TX United States  
Excellent  customer service, quick to reply on my email.
Product arrived as advertised, flawless quality on the bolt carrier group.

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  0 of 0 people found the following review helpful:
 
The Best! September 17, 2017
Reviewer: Matthew West from El Paso, TX United States  
Fantastic bolt that looks great and runs smoothly.

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  0 of 0 people found the following review helpful:
 
Sharps BCG September 11, 2017
Reviewer: Michael DeMartini from Patchogue, NY United States  
Just as described almost a work of art.

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