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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: $199.99
Savings: $20.00

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 and 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 μm (Micro Meter) or 2-4 μ (Microns)
Hardness HV 0.05: 2000 – 2800 or 80+ HRC
Deposition method: PVD UBM/PACVD
Friction vs. steel, dry: 0.1
Color: Carbon Black




Daily Shooter: Sharps Rifle Co XPB BCG Review and Testing
Average Rating: 5 of 5 Total Reviews: 21 Write a review »


  0 of 0 people found the following review helpful:
 
Carrier Group April 20, 2017
Reviewer: Gerald Hunkele from Howell, NJ United States  
I received the BCG quickly, and  it looks great
I ran 500 rounds thru it  it worked flawlessly

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  0 of 0 people found the following review helpful:
 
Pure Excellence April 18, 2017
Reviewer: thomas leager from Madison, WI United States  
I received my Sharps XPB bcg quickly; as soon as I put it in my M&P 15 it was a match made in heaven. Ran smooth with minimum amount of lubricant necessary. Cleaning was a breeze after 100 rounds with no signs of any real wear on the bolt, carrier, nor firing pin. The firing pin has a great feel to it, sturdy, as does the whole bch. Thank You to Sharps rifle company!

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  0 of 0 people found the following review helpful:
 
XPB Bolt Carrier Group April 17, 2017
Reviewer: Midland Armory from Foley, MN United States  
I have not had the opportunity to get this into a rifle and try it out yet, but overall the quality seems to be excellent.  It's nice to see an actual machined extractor instead of MIM.  The extractor spring uses just an o-ring instead of an insert, which may be fine, but that is about the only thing I would add.

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  0 of 0 people found the following review helpful:
 
XPB Range Review April 14, 2017
Reviewer: JB from Blanchard, OK United States  
Just got this BCG into one of my ARs. I put it into a Colt 6920 then proceeded to put about 300 rounds downrange. The BCG performed flawlessly with .223 as well as 5.56 ammo. After shooting I took the BCG apart and looked for anything abnormal...nothing. Inwas able to clean it with a dry towel in a matter of minutes. Great product.

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  0 of 0 people found the following review helpful:
 
Great BCG April 10, 2017
Reviewer: Schype from Saint Louis, MO United States  
This is my second BCG and I am very pleased with the quality of Sharps products.

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