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


 
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The Sharps Xtreme Performance Bolt (XPB) Carrier Group Complete - FDE is precisely machined from S7 tool steel. The XPB undergoes a 24-hour thermal cycle proprietary heat treatment and is finished with ZrN (Zirconium Nitride) Coating.
Your Price: $219.99
Sale Price: $164.99
Savings: $55.00

Stock Status:(Out of Stock)

Availability: Usually Ships in 3 to 5 Business Days
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Description
 

The Sharps Xtreme Performance Bolt (XPB) Carrier Group Complete- FDE 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 ZrN (Zirconium Nitride) 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 and ZrN coated (U.S. Patent No. 9,863,729)
Bolt Carrier:
S7 Tool steel, shot peened and ZrN coated
Gas Key: 4130 Steel, attached with Grade 8 hardware, properly staked and ZrN 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 ZrN Coating

Coating thickness: 0.2 - 0.5 Microns
Hardness HV 0.05: 1500-1800 or 70+ HRC
Deposition method: PVD UBM/PACVD
Friction vs. steel, dry: 0.5
Color: Flat Dark Earth




Average Rating: 4.5 of 5 Total Reviews: 14 Write a review »


  0 of 0 people found the following review helpful:
 
WTF Sharpes February 2, 2018
Reviewer: Joe Grunt from Palm Bay, FL United States  
I've been waiting almost 3 months for the FDE version to be restocked. WTF Sharpes? Bring back the FDE Reliabolt system.


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  0 of 0 people found the following review helpful:
 
Sharps XPB Carrier Group Complete December 11, 2017
Reviewer: Darell Shaw from Newport News, VA United States  
Very good product, just over 600 rounds no issues.

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  0 of 0 people found the following review helpful:
 
My ar15 ready for battle December 2, 2017
Reviewer: pedro ulloa from fontana, CA United States  
Looks great on my tan ar that I just built I’ll probably go shooting soon beware evil doers

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  0 of 0 people found the following review helpful:
 
Great BCG December 2, 2017
Reviewer: Daniel from United States  
Used the BCG for a couple range sessions zero malfunctions only time will tell as I continue to use the BCG only have 290 rounds but so far so good.

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  0 of 0 people found the following review helpful:
 
Excellent November 26, 2017
Reviewer: Robert E. from Houston, TX United States  
Exactly what I was wanting. Shipped fast, great BCG!

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