In honor of our founder, Christian Sharps, his commitment to innovation, technology and superior accuracy, we are proud to introduce the Sharps Adjustable Gas Recoil System (SAGRS) in combination with our tried and tested Xtreme Performance Bolt (XPB) BCG.
SAGRS allows the shooter to adjust the gas flow entering the bolt carrier group by an adjustment screw in the gas key, enabling the dwell time to be increased or decreased, as necessary. In addition to virtually eliminating all suppressed blowback, SAGRS can reduce felt recoil when combined with a proper buffer and spring weight.
- Fully adjustable
- Eliminates suppressed blowback
- Limited Lifetime Warranty
Technical Data on SAGRS
|Adjustable Gas Key:||4130 steel attached with Grade 8 hardware (U.S. Patents No. 9,221,415 - 9,528,783) |
|Coating:||DLC coated, Black|
The Sharps Xtreme Performance Bolt (XPB) 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 DLC (Diamond-Like Carbon) coating.
The XPB fits standard AR-15/M16/M4 rifles chambered in .223/5.56, Sharps 25-45, and 300 Blackout calibers. The XPB carrier displays the SRC logo machine cut and is visible when the ejection port door is open.
|Bolt and carrier:||S7 tool steel, shot peened and DLC coated (U.S. Patent No. 9,863,729)|
|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 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|
Why S7 Tool Steel?
S7 has excellent shock absorbing properties which provide superior impact resistance when being utilized in the construction of Sharps Bolt Carrier Groups. S7 demonstrates high strength and toughness as well as a resistance to softening at moderately high temperatures, i.e. operating temperatures not exceeding 1000°F.
The properties we as shooters look for in an AR platform BCG, are hardness and wear resistance. S7 provides such attributes when heat-treated properly. Sharps has found that the key benefits from S7 tool steel are higher tensile strength and toughness which translate to longevity of use, i.e., a higher number of cycles the bolt can handle before it fails.
Technical Data on DLC Coating
|Coating thickness:||2-4 Microns|
|Hardness HV 0.05:||HRC 80 +|
|Deposition method:||PVD UBM/PACVD|
|Friction vs Steel:||Dry 0.1|
- 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
- Mil-Spec Extractor and Ejector Springs, Gas Rings
Limited Lifetime Warranty
If any SRC Bolt Carrier or Relia-Bolt™ is found to have manufacturer defects, SRC will repair or replace it at no charge. Although our BCG is Mil-Spec, there are so many variables, sometimes a little troubleshooting, or fine tuning of parts may be required for proper functionality. Before a part is replaced or refunded, SRC reserves the right to inspect and test part(s) in question to determine if it is defective. Please keep in mind that altering the product renders the warranty void.