Sharps Rifle Co. AR-15 XTREME Bolt Carrier Group, Diamond Like Carbon (DLC) Coating, *NEW*
*NEW* US manufactured Xtreme Performance Bolt Carrier Group with Diamond Like Carbon Coating for AR-15 rifles, made by Sharps Rifle Company in the USA.
*NEW* US manufactured Xtreme Performance Bolt (XPB) Carrier Group with Diamond Like Carbon (DLC) coating for AR-15 rifles, made by Sharps Rifle Company in the USA.
Sold as an assembly.
When you demand nothing less than perfection!
The Sharps Xtreme Performance Bolt (XPB) is precisely machined from S7 Steel.
The XPB is finished inside and out with a Diamond like carbon coating (DLC) to minimize the need for lubricants, and to make operation and clean up a breeze.
The XPB has the SRC logo machine cut on the side of the carrier, which is visible when the ejection port door is open.
It fits standard AR-15/M16/M4 rifles chambered in .223 / 5.56mm, 25-45 Sharps and 300 Blackout calibers.
Weighs an amazing 11.2 ounces!
Unmatched Strength and Durability The Xtreme DLC Bolt Carrier group is machined from S7 tool steel and tempered with SRC’s proprietary heat-treating process, significantly increasing strength when compared to mil spec Carpenter 158.
Superior Corrosion Resistance Every Xtreme Bolt Carrier Group is coated with DLC, or diamond like carbon coating which undergoes over a 24 hour heat treating period to ensure maximum reliability and durability.
100% Compatibility Relia-Bolt is drop-in compatible with all existing .223 / 5.56 variant parts groups and bolt carriers; no modifications or tools are necessary for installation.
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