I wanted to compare the various DTK-2 Style brakes available for the AK platform at the moment. The original design is credited to Zenitco of the Russian Federation. Several U.S. Vendors have copied the design.
From left to right in photo one: Copy made by Dnepr0mike on theAKforum w/ 24m threads, Original Zenitco w/ 24m threads, Copy made by Palmeto State Armory w/ 24m threads, and Original Zenitco w/ 14m threads. The Palmetto copy is featured in photo two on an AK104-type firearm. Original pictured below the firearm for reference. We will take each of these for a whirl, and report back at some point in the future.
I was able to run a few different colored PSA 7,62×39 waffle magazines this weekend. We are impressed with the quality of these products, and at $9.99 a piece, they are an absolute steal! These are near clones of the Bulgarian circle-10 magazines (which were designed by the famous Bulgarian engineer Ivan Kolev). There are some differences between these and the originals, including a slightly shorter steel reinforcement plate on the spine, and a gigantic (and obnoxious) logo that PSA placed on the left side of the magazine (See picture above).
***UPDATE: I had a chance (on the ar15 dot com web forum) to ask the owner of PSA if these things were still available, and he mentioned that they were designing a second generation magazine that will be “cooler”. I let him know these were his best product, but I hoped the second generation has a smaller, less awful looking logo.