Palmetto State Armory PSAK-74 - Are they safe to shoot or are the locking lugs defective?

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Garand Thumb and Mishaco both released videos showing issues with their Palmetto State Armory AK74's also known as PSAK74's. Garand Thumb showed the most concerning issue with his video and his concern that the locking lugs were showing signs of abnormal wear thereby raising concerns if the PSA AK74 was safe to shoot or not. We take a deep dive into my PSA AK74 and see if there are safety concerns with my rifle or if the wear shown is more or less fairly normal. The PSA AK74 is of course chambered in 5.45x39.

---------- Chapter Marks ----------
0:00 Introduction
1:55 Discussion about Garand Thumb and Mishaco videos
5:26 Test firing PSA AK74
5:43 Russian Saiga 74 and its lug wear
7:57 Test firing PSA AK74
8:19 Firing pin failure
10:19 Fixed firing pin failure
11:30 Discussion about bolt or firing pin being out of spec
13:30 More test firing
14:39 Lug wear on several different rifles and compared to PSA's wear
17:34 Head space test
18:11 Problems with Small Arms Solutions PSAK74
18:56 Deep dive into what is causing lug wear
22:38 Are PSA rifles good "go to" rifles?
23:51 Overview of our findings