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Sharps XPB Carrier Group Complete
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: $159.99
Savings: $60.00

Stock Status:In Stock

Availability: Usually Ships in 1 to 2 Business Days
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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 (U.S. Patent No. 9,863,729)
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
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Average Rating: 5 of 5 Total Reviews: 270 Write a review »


  0 of 0 people found the following review helpful:
 
Bolt Carrier Group Xtreme September 14, 2018
Reviewer: Michael from Loudon, TN United States  
Best bolt carrier group on the market. Got it for a really nice price and this thing performs

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  0 of 0 people found the following review helpful:
 
XP BCG September 4, 2018
Reviewer: Anonymous Person from Kettering, OH United States  
Only 100 rounds in but I have to say this is an amazing product. Quality/practical innovation that works...at least so far.

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  0 of 0 people found the following review helpful:
 
XPB Carrier Group September 4, 2018
Reviewer: Anthony Jimenez from Demorest, GA United States  
The BCG is flawless. The finish is unlike anything I've seen before, silky smooth on a piece of steel! Shipped the same day I ordered it and had it 2 days later! Wonderful service, I will buy every BCG from Sharps from now on.

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  0 of 0 people found the following review helpful:
 
Sharps XPB Carrier Group Complete September 3, 2018
Reviewer: Ron Imel from Plano, TX United States  
Great shipping, fast & free. Inspecting the BCG shows an awesome slick finish, the feel alone in my rifle is excellent, smooth & silky.  Haven't been able to shoot with it yet, but I am anticipating getting out.  4 stars only because I haven't shot it yet!!

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  0 of 0 people found the following review helpful:
 
Bcg September 3, 2018
Reviewer: Anonymous Person from Lincolnton, GA United States  
Great bolt carrier group running them on two rifles so far and are holding up to the rifle chambered in 458 socom

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