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US 12,085,353 B2Granted
Firearm
AssigneeF.M. Products Inc
InventorsPaul T. Noonan, Aaron Neal Trout
Life of this patent
Estimating the term…
Abstract
An upper receiver is disclosed. The firearm contains a bolt carrier assembly positioned within the upper receiver, a recoil spring guide rod, wherein the bolt carrier assembly is configured to slide along the recoil spring guide rod between a locked position and an unlocked position, and a first recoil spring, wherein the recoil spring guide rod is positioned within the first recoil spring.
Claims14
An upper receiver comprising:
- a bolt carrier assembly positioned within the upper receiver;
- a recoil spring guide rod, wherein the bolt carrier assembly is configured to slide along the recoil spring guide rod between a locked position and an unlocked position;
- a first recoil spring, wherein the recoil spring guide rod is positioned within the first recoil spring;
- and
- a second recoil spring, wherein the recoil spring guide rod is positioned within the second recoil spring, wherein the first recoil spring is at least partially positioned within the second recoil spring.
2 more elements
Dependencies are inferred from the claim text.