Home > All Products >

Xtreme Perfomance Bolt

No Retail Packaging
Your Price: $89.99
Sale Price: $69.99
Savings: $20.00

Stock Status:In Stock

Availability: Usually Ships in 1 to 2 Business Days


The Sharps Xtreme Performance Bolt (XPB) with DLC (Diamond Like Carbon) Coating; extreme hard coating and scratch resistance. In addition, the new bolts have gone through a 24-hour thermal cycle proprietary heat treatment.

Technical Data

  • Bolt: S7 Tool steel, shot peened and DLC 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, 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
30-Day Money Back Guarantee
Interested in our products, but hesitant on the design? We offer a 30-Day Money Back Guarantee for certain Sharps products including, the XPB, Relia-Bolt, Bolt Carrier, and Bolt Carrier Group.

100% Compatibility
XPB is drop-in compatible with all existing .223/5.56 variant parts groups and bolt carriers; no modifications or tools are necessary for installation.

Lifetime Guarantee
If any XPB is found to have defects in materials or workmanship, Sharps will repair or replace it at no charge. You do not need to be the original owner, and no time limit applies.

Average Rating: 5 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
The Reliabolt but only better May 5, 2017
Reviewer: George Hettinger from Perry, Iowa USA  
The reliabolt has been our go to bolt for most of our higher line builds.  We were really excited that the XPB Bolt was now offered.  I think this will replace the reliabolt with the DLC coating in the XPB Bolt. Thanks again SRC.

George H
Man O War Precision Arms LLC

Was this review helpful to you?

  0 of 0 people found the following review helpful:
Extreme Performance Bolt March 30, 2017
Reviewer: Lee Waller from Enterprise, AL United States  
Shipped fast and arrived as advertised!  Purchased as a spare but don't really think I will ever need to use it in my XPB Carrier Group.  I am thinking about using it in another BCG.  Quality parts!!  Very pleased!!

Was this review helpful to you?

SRC Arms