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


 
Order Yours Today! 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 ZrN (Zirconium Nitride) Coating Bolt Carrier and DLC Bolt.
Your Price: $219.99
Sale Price: $169.99
Savings: $50.00

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- 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 on the Bolt Carrier and DLC (Diamond Like Carbon) Coating on the bolt. 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.

We offer a 30-Day Money Back Guarantee on our complete line of Sharps bolt and bolt carrier products.

Technical Data
Bolt: S7 Tool steel, shot peened and DLC 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 Coating

Bolt Carrier:
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

Bolt:
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


Average Rating: 5 of 5 Total Reviews: 1 Write a review »


  0 of 0 people found the following review helpful:
 
XPB CARRIER GROUP December 9, 2018
Reviewer: Art Cruthis from Old Monroe, MO United States  
I have not yet been able to try out my new xpb but am confident it will perform as avertised. I did weeks of research before choosing sharps.

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