Budget 11.5-inch First Scratch Build on Spike's and PSA M4A1 Receivers

A budget 11.5-inch pistol built from scratch to learn the process and ride along on desert trips: a Spike's stripped upper on a PSA M4A1 lower, with a Delta Team Tactical barrel and B-Kings handguard, gas block and A2 flash hider. A KAK Shockwave brace, Magpul MBUS sights and AFG, and a painted Vortex Strikefire II round it out.