Bust Your Builds | Episode 14

Show intro and format

The hosts welcome viewers to Class of Arms and Episode 14 of Bust Your Builds. This segment explains that the show features audience-submitted firearm builds, including photos and spec sheets. The goal is to offer honest criticism and discuss the thought process behind each configuration. They emphasize practical setups tailored to different use cases rather than flashy parts lists. The hosts then transition into the first submission and set the tone for straightforward, function-focused evaluations.

LWRC monolithic rifle build review

The first build is an LWRC rifle identified by its UID tag and monolithic upper. The hosts note LWRC’s history of military contracts and describe the rifle as a no-frills, practical setup. It features a short LWRC/B5 Systems-style stock, a vertical grip, and a fluted barrel for both function and aesthetics. The optic is a Trijicon MRO on a Unity FAST mount with a Trijicon 3x magnifier on a flip-to-center Unity mount. A BCM foregrip, QD sling mount, sling, light, and backup sights round out the build, with Skittles humorously stored in the grip. The ambidextrous lower is praised for usability, and they estimate the rifle could be effective to about 600 meters with a 16-inch barrel. Both hosts score it around an eight, highlighting its simple, effective configuration.

DDM4 suppressed rifle with rattle-can camo

The next rifle gives off strong Grantham-inspired vibes with a distinctive rattle-can paint job described as mint chocolate chip mixed with tiger stripe and woodland elements. It is a DDM4 with a Suppressive Arms gas block for tuning. The rifle runs a suppressor that appears similar to a Paladin or Palonium, along with a vertical grip and a laser/illuminator setup, indicating use with night vision. The optic is a Vortex Razor Gen 2 1-6 in MRAD on a Reptilia mount with an RMR, showing an emphasis on precision and math-driven holds. The trigger is a Geissele unit, paired with a braided Geissele spring, Radian safety, and Radian charging handle. A modern grip from Driven Arms Co or Drew Myers Defense is noted for its ergonomics and improved trigger control. The hosts appreciate the suppressed configuration for hearing protection and give the build a strong score around nine, praising the thoughtful parts selection and overall execution.

HK SP5 PCC with Wolfman suppressor

The third submission is an HK SP5, confirmed by matching warning labels and overall configuration. It wears a Knights rail, which the hosts note was difficult to obtain for years, indicating significant investment. A Dead Air Wolfman suppressor is mounted, identified visually and compared to a similar setup on an MP5. The stock appears to be from B&T, and the optic is a Trijicon MRO on a low mount. The hosts mention that some users prefer taller mounts like Scalarworks to better integrate iron sights, but acknowledge that this lower setup is a matter of preference. The build includes a sling and light, and is described as quiet, compact, and functional. They classify it as a PCC-style sub gun due to its configuration and semi-automatic operation. The hosts emphasize that MP5-style platforms remain a timeless choice and score the build around seven to eight, citing its straightforward, effective nature without unnecessary extras.

Smith & Wesson M&P 308 ACOG setup

The next rifle is a Smith & Wesson M&P in 308 with an 18-inch barrel and a notably long muzzle device. It is topped with a Trijicon ACOG featuring an appropriate reticle for the caliber, mounted in a LaRue Tactical mount. Backup sights are installed, and the rifle uses a B&T Atlas bipod for stability. Magpul components include the handguard, stock, vertical grip, and a K2 pistol grip. A Strike Industries charging handle and Troy Industries M4 mount are also listed, along with ambidextrous safeties, an ambidextrous magazine release, and a two-stage trigger. The hosts describe the 308 as a hard-hitting option that will clearly accomplish its intended role, though they suggest upgrading the handguard for improved functionality and accessory mounting. Overall, they view it as a solid, practical 308 build and both settle on a score of about seven.

300 Blackout short build with diligent defense can

The final featured build is a short 300 Blackout rifle, estimated around 7 to 9 inches in barrel length. It uses a Ballistic Advantage barrel and a Geissele rail, with a Geissele Super Charging Handle. A Cherry Bomb-style rear mount interfaces with a Diligent Defense 30-caliber suppressor. The optic is a Trijicon MRO paired with a G33-style magnifier clone sourced from Spec Precision, providing both close and intermediate-range capability. Illumination is handled by a Cloud Defensive REIN 2.0 light, secured with an Emissary hand stop or hand grip. The lower is a Rainier Arms ambidextrous model with a CMMG lower parts kit, and the trigger is a Giessele SSP. A T-Rex Arms band is used with a Blue Force Gear sling, though the sling is not shown in the photo. The grip is a very vertical Die Co Kung Fu Grip, which the host finds less comfortable due to hand cramping, but acknowledges that this is a personal ergonomic preference. Overall, the build is recognized as a carefully assembled 300 Blackout setup with quality components and a focus on suppressed performance.