From the Workbench: 12.5 Custom Build

Welcome back to the workbench! In today’s video, I’m diving into my personal 12.5-inch AR-15 build. If you’ve been waiting for a detailed breakdown of a lightweight, maneuverable rifle setup, you’re in the right place. I’ll cover why I chose this particular build, the benefits of the 12.5-inch barrel, and an in-depth look at the components I used.
Key Components Covered:
Barrel Length & Build Purpose: Why I chose the 12.5" barrel for a lightweight and compact AR-15 that's perfect for close-quarters and dense environments but still capable of reaching out to 600 yards.
Buttstock & Buffer System: Featuring the SB Tactical SBA-4 Pistol Stabilizing Brace and Vltor A5 buffer system. Learn why this combination enhances stability and performance.
Charging Handle: The Radian SD Charging Handle - its effectiveness and some alternative options for suppressor use.
Bolt Carrier Group (BCG): The KAK K-Spec NP3 BCG’s unique design reduces noise and improves suppressor performance.
Trigger: The Geissele SSA Trigger - renowned for its quality and reliability.
Why Watch This Video?
Build Tips: Insight into why a 12.5" barrel might be the ideal choice for your AR-15.
Component Reviews: Detailed evaluation of each part, including performance pros and cons.
Future Upgrades: Potential enhancements like hydraulic buffers that I’m looking forward to.
Whether you’re a seasoned AR-15 builder or just getting started, this video will provide valuable information for creating a versatile and high-performance rifle.
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[@PrayingPanda]

FYI it's the absence of a stock, not the presence of a stabalizing brace, that makes it a pistol. Take the brace off and it's still a pistol.

[@jmollick1]

been running BA barrels for years now with PMC X-tac M193, my main squeeze is a 11.5" and groups AND velocities are crazy tight

[@PrayingPanda]

1:38 i use the geissele super charging handle because there's a high shelf to block/divert gas

[@Almost_Made_It]

12.5 is king. That extra inch picks up an outsized amount of velocity with m193 for some reason

[@yeshua1176]

Precisely the velocity gain from 12.5-14.5 is negligible at best more than enough for 55gr ball to fragment within 100 yards but still enough energy to reach out

[@KyleInReno]

How’s the eye box on the PA micro prism? I had the vortex 5x and the short eye relief combined with a terrible eye box made it nearly unusable.

[@scorpiustactical]

For a prism its fairly good, definitely much better than my ACOG when I had one

[@darkdre7]

Great video what’s the name over the pistol brace your using ?

[@scorpiustactical]

@@darkdre7 SB Tactical SBA4

[@darkdre7]

@@scorpiustactical I’m going to look that up thanks