DESCRIPTION
The Sharps Xtreme Performance Bolt (XPB) Balanced Carrier Group Complete is comprised of our patented Relia-Bolt™ and our Balanced Bolt Carrier. Both are machined out of S7 tool steel. The XPB undergoes a 24-hour thermal cycle proprietary heat treatment and is finished with NiB-X (Nickel Boron) Coating.
The XPB carrier displays the SRC logo machine cut and is visible when the ejection port door is open. The XPB fits standard AR-15/M16/M4 rifles chambered in .223/5.56, Sharps 25-45, and 300 Blackout calibers.
Technical Data
| Bolt: |
S7 Tool steel, shot peened NiB-X coated (U.S. Patent No. 9,863,729) |
| Bolt Carrier: |
S7 Tool steel, shot peened and NiB-X coated |
| Gas Key: |
4130 Steel, attached with Grade 8 hardware, properly staked and NiB-X 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, NiB-X coated |
| Ejector: |
S7, shot peened and Manganese Phosphate coated |
| Extractor Pin: |
S7, shot peened and Manganese Phosphate coated |
