US 12,007,190 B2
Connection for connecting upper and lower receiver of a weapon
Christoph Schrödl, Porvoo (FI)
Assigned to SAKO OY, Riihimäki (FI)
Appl. No. 17/924,421
Filed by SAKO OY, Riihimäki (FI)
PCT Filed May 12, 2021, PCT No. PCT/FI2021/050352
§ 371(c)(1), (2) Date Nov. 10, 2022,
PCT Pub. No. WO2021/234219, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 20205511 (FI), filed on May 20, 2020.
Prior Publication US 2023/0184499 A1, Jun. 15, 2023
Int. Cl. F41A 3/66 (2006.01)
CPC F41A 3/66 (2013.01) 10 Claims
OG exemplary drawing
 
1. A connection for connecting an upper receiver to a lower receiver of a weapon, which connection comprises front and rear take-down pins, and through-holes formed in both receivers for inserting the take-down pins through these holes to connect the upper and lower receiver to each other wherein the rear take-down pin comprises an eccentric portion at its length for tightening the receivers against each other by turning the rear take-down pin.