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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: $159.99
Savings: $60.00

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: 5 of 5 Total Reviews: 36 Write a review »


  0 of 0 people found the following review helpful:
 
October 1, 2018
Reviewer: RICHARD moses from Philadelphia, PA United States  
Had a few jam ups at first. Very frustrating.  Then it seemed to break in . I shot 150 rounds and I think the last 130 were without incident. Time will tell. Thank you

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  0 of 0 people found the following review helpful:
 
September 17, 2018
Reviewer: Anonymous Person from Seminole , TX United States  
Great product and fast shipping!

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  0 of 0 people found the following review helpful:
 
FDE Bolt carrier grope September 15, 2018
Reviewer: Thomas Fisher from Seadrift, TX United States  
Have not fired this yet. installed in firearm and weather is bad. Quality piece as all Sharp's products are. Running four now have another build ,parts, ordered and this is the carrier for this upper.


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  0 of 0 people found the following review helpful:
 
Like the BCG so much I bought 2 August 23, 2018
Reviewer: Mark Walker from Newbury Park, CA United States  
These bolts are well constructed and perform very well.  I noticed the difference in the first rifle I converted.

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  0 of 0 people found the following review helpful:
 
July 30, 2018
Reviewer: GLEN HERNANDEZ from Miami gardens, FL United States  
Happy with this product.

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