US 12,215,948 B2
Firearm
Paul T. Noonan, Boise, ID (US); and Dean Earl Sylvester, Boise, ID (US)
Filed by Firearm Consulting Group, LLC, Boise, ID (US)
Filed on Sep. 30, 2021, as Appl. No. 17/490,061.
Application 17/490,061 is a continuation of application No. 16/746,909, filed on Jan. 19, 2020, granted, now 11,162,748.
Claims priority of provisional application 62/794,643, filed on Jan. 20, 2019.
Prior Publication US 2022/0018619 A1, Jan. 20, 2022
Int. Cl. F41A 3/66 (2006.01); F41A 11/02 (2006.01)
CPC F41A 3/66 (2013.01) [F41A 11/02 (2013.01)] 3 Claims
OG exemplary drawing
 
1. An upper receiver assembly of a firearm, the upper receiver assembly comprising:
a barrel;
an extension block removably coupled with the barrel;
an upper receiver removably coupled with the extension block;
a handguard mounting block removably coupled with the barrel; and a handguard removably coupled with the handguard mounting block; wherein the handguard mounting block comprises an aperture configured to accommodate a gas block.