Recoil apparatus for firearm
A recoil mechanism for an auto-loading firearm, having a gas-operated action bar assembly. One or more compression springs are used, mounted on associated retaining rods contained in a stationary orientation on the firearm. The springs are linked to the firearm's gas system at one end, and bear against stops affixed to ends of the spring retaining rods. The entire mechanism is contained within a forward grip mounted on the firearm, the grip optionally being provided with mounting rails.
1. A recoil mechanism for an auto-loading firearm having a gas-operated action bar assembly communicating with a barrel of the firearm, comprising
a. a spring retaining rod, said retaining rod being configured to be mounted in a stationary orientation on the firearm,
b. a clasp slidingly mounted on said retaining rod, said clasp being shaped to be secured to an action bar sleeve of the action bar assembly of the firearm, said action bar sleeve being mounted for translation along said barrel,
c. a compression spring mounted on said retaining rod and bearing against said clasp to bias said clasp in an extended orientation, and
d. a clamp located at one end of said retaining rod, said clamp being configured to be fixedly mounted in a stationary orientation on the firearm,
e. a second retaining rod, one retaining rod being located on each side of the firearm when mounted thereon,
said clasp including a pair of internal bushings, one of said bushings being mounted on each said retaining rod.
2. The recoil mechanism according to claim 1 , including an end cap on each retaining rod opposite said one end.
3. The recoil mechanism according to claim 2 , including a compression spring mounted on each retaining rod, and in which said spring on each retaining rod extends between said cap and said clasp.
4. The recoil mechanism according to claim 1 , including a pair of compression springs mounted on each retaining rod, said compression springs of each pair being concentric.
5. The recoil mechanism according to claim 1 , including a forward grip formed to contain said retaining rods, said clasp, said compression spring and said clamp.
6. The recoil mechanism according to claim 5 , in which said forward grip is railed.
7. A recoil mechanism for an auto-loading firearm having a gas-operated action bar assembly, comprising
a. a pair of spaced spring retaining rods,
b. a clasp slidingly mounted on said retaining rods, said clasp being shaped to be secured to an action bar sleeve of the action bar assembly of the firearm,
c. a compression spring mounted on each retaining rod and bearing against said clasp to bias said clasp in an extended orientation toward one end of said rods,
d. a clamp located at said one end of said retaining rod, and
e. a housing formed to contain said retaining rods, said clasp, said compression springs and said clamp on said firearm, with said clamp and said retaining rods being fixedly mounted in a stationary orientation on the firearm.
8. The recoil mechanism according to claim 7 , in which said housing comprise a forward grip.
9. The recoil mechanism according to claim 7 , in which one retaining rod is located on each side of the firearm when mounted thereon.
10. The recoil mechanism according to claim 9 , in which said clasp includes a pair of internal bushings, each bushing being mounted on one of said retaining rods.
11. The recoil mechanism according to claim 7 , including an end cap on each retaining rod opposite said one end.
12. The recoil mechanism according to claim 11 , in which said spring on each retaining rod extends between said cap and said clasp.
13. The recoil mechanism according to claim 7 , including a pair of compression springs mounted on each retaining rod, said compression springs of each pair being concentric.