Almost all extraction problems on the AR platform originate from a weak extractor spring. This has been known for years, but to date, few have come up with an effective way to fix this nagging problem. A stronger spring usually just wears out that much quicker and due to limited space under the extractor, one quickly reaches a point where stronger springs with more coils do not have the room to even compress.

HYDRA has the “proven” solution! The HYDRA® D-Fender “D-Ring” assists in eliminating extraction problems and increases the reliability and performance in the M16/M4/AR-15 family of weapons. This High-Tech, composite “D-Ring” increases extractor spring force by 4x and has been tested and approved by the United States Department of the Army. It is also in use with British SAS, US Navy Special Ops, the Canadian Military, and multiple law enforcement agencies nation wide. HYDRA® D-Rings have also logged over 1 Million rounds on individual D-Rings proving just how tough they really are.

According to the US Department of the Army, “D rings have been used on three configurations of the M16 type weapons and have always been found to aide in reliability”

Increase the reliability of your AR with the addition of a HYDRA® D-Ring.