Firearm stock conversion method

• US 7,673,413 B2
• Filed: 04/28/2007
• Issued: 03/09/2010
• Est. Priority Date: 04/28/2007
• Status: Expired due to Fees

• Current Assignee: Vista Outdoor Operations LLC (Vista Outdoor Inc.)
• Original Assignee: Blackhawk Industries Products Group Unlimited LLC (Northrop Grumman Corporation)
• Inventors: Bentley, James K.
• Primary Examiner(s): JOHNSON, STEPHEN
• Application Number:
  US11/796,592
• Publication Number:
  US 20090300962A1
• Time in Patent Office: 1,046 Days
• Field of Search: 42/750.3, 42/751, 42/750.1, 42/72
• US Class Current: 42/75.03
• CPC Class Codes: F41C 23/06 Stocks or firearm frames specially adapted for recoil reduction
• CPC Class Codes: F41C 23/14 Adjustable stock or stock parts, i.e. adaptable to personal requirements, e.g. length, pitch, cast or drop

Abstract

A method for upgrading a non-recoil suppressing (NRS) stock to a special operations (Spec Ops) stock with full recoil suppression. The new parts are the slide member and lever that has a cam member mounted on its upper end and an extension spring attached to its bottom end. A locking pin is removed from the stationary slide member and two retainer pins are inserted from the sides into the new slide member to facilitate spring action. This structure functions in the same manner as the recoil reduction structure illustrated in U.S. Pat. No. 5,722,195. A replacement sleeve has a rib member extending downwardly from its bottom surface. Replacement sleeve and extension spring are assembled in a tubular member to form a second recoil reduction assembly. This recoil reduction structure functions in the same manner as the structure illustrated in U.S. Pat. No. 6,732,466.

Claims

1. A method of converting a firearm stock comprising the steps of:

(a) providing a non-recoil suppressing stock having a butt stock assembly, a tubular sleeve within a tubular member, a slide member and a hollow handgrip portion having a removable cover plate;

(b) disassembling said butt stock assembly from the end of said non-recoil suppressing stock;

(c) removing said tubular sleeve from within said tubular member, and removing said stationary slide member from said non-recoil suppressing stock;

(c) sliding off said removable cover plate from said hollow handgrip portion of said non-recoil suppressing stock;

(d) installing a lever assembly having a cam member and a lever assembly spring into the cavity of said hollow handgrip portion;

(e) installing a replacement sleeve having an internal replacement sleeve spring into said tubular member and affixing a replacement slide member onto said non-recoil suppressing stock; and

(f) reassembling said butt stock assembly onto said non-recoil suppressing stock.

2. The method for converting a firearm stock according to claim 1, wherein said non-recoil suppressing stock is a special operations stock.

3. The method for converting a firearm stock according to claim 1, wherein said non-recoil suppressing stock is a special operations stock having a length adjustment mechanism.