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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: $169.99
Savings: $50.00

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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: 5 of 5 Total Reviews: 31 Write a review »


  0 of 0 people found the following review helpful:
 
AR15 part May 31, 2018
Reviewer: Romik Petrosian from Burbank , CA United States  
I got a FDE bolt for my AR15 and I love it. it is perfect fit on my two tone AR15. the Bolt is very high quality build. I will recommend this to all if they are looking for best parts for their AR15

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  0 of 0 people found the following review helpful:
 
Bolt carrier cool finish May 27, 2018
Reviewer: Jonathan Stopa from Wharton , NJ United States  
Nice finish extremely well-made
thanks
Jonathan

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  0 of 0 people found the following review helpful:
 
Best BCG ever manufactured May 17, 2018
Reviewer: Jordan Lindo from Sneads Ferry , NC United States  
Easy to install, easy to clean, aesthetically pleasing and have no issues running .300blk on it. Am definitely looking to buy another one in the near future.

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  0 of 0 people found the following review helpful:
 
AR-15 Exo coated bolt group FDE April 19, 2018
Reviewer: Robert Pezanko JR from Plainfield, CT United States  
The quality of this piece is flat out awesome and is a piece of ART!! looks simply amazing. Top notch quality and fit and finish. Super fast shipping and great communication...  Thanks SRC

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  0 of 0 people found the following review helpful:
 
Awesome BCG April 14, 2018
Reviewer: Jason from Oglesby, IL United States  
Well done coating! Really excited about the FDE and extremely well made product and a pure joy to have the quality of Sharps. This is the 5th Bolt carrier group I purchased from Sharps and will continue to buy more when I need them.


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