Choosing the correct AR-15 buffer weight is crucial for optimal firearm function. Heavier buffers slow the cyclic rate, which is often necessary for SBRs and suppressed builds due to increased gas pressure. Diagnosing issues can be done by observing the ejection pattern, with 3-4 o'clock being ideal.
The Maxim Defense PDX platform, showcased at SHOT Show 2019, offers a compact and flat-shooting experience with minimal recoil. Key features include the SCW stock reducing length to 4 inches by integrating the buffer into the bolt carrier, and the 'Hate Brake' muzzle device. The M-RAX rail system provides modularity with a tool-less, quick-attach design.
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