Build guides

Plain-English guides to picking parts that fit.

Best Suppressors for the FN PS90 (5.7x28): What Fits and Why

Which suppressors work on an FN PS90, how to thread the barrel, 5.7x28 ratings explained, and picks from about $595 to $1,000.

AR-10 Explained: DPMS High vs Low Profile vs Armalite Pattern

Why AR-10 parts don't always fit: DPMS high vs low profile uppers, the Armalite pattern, and how to pick matching handguards and parts.

Building Your First AR-15: The Parts You Actually Need

A plain parts list for a first AR-15 build: lower, upper, barrel, handguard, trigger and the small kits people forget. Prices included.

AK Upgrades That Are Worth It (and Actually Fit)

The AK upgrades that make a real difference: optic mounts that hold zero, handguards, triggers, stocks and grips, plus what fits which AK.

Best Red Dots for a Glock 19: MOS Plates vs an RMR-Cut Slide

MOS plates or an RMR-cut slide for your Glock 19? How footprints work, which red dots fit, and picks from about $233 to $743.

Choosing a Precision Rifle Chassis for a Remington 700 Footprint

How to choose a chassis or stock for a Rem 700 short action: footprint, barrel clearance, AICS mags, fit and weight, with picks from $256.

PCC and SMG-Style Carbines: Kuna vs Vector vs Scorpion

Springfield Kuna, KRISS Vector CRB and CZ Scorpion 3+ compared: actions, magazines, barrel length, legal status and the first upgrades.

Pistol Lights: What Fits Your Gun (Glock, SIG, FN)

How to pick a pistol light that fits: rail types, compact vs full size, holsters, and lights for Glock, SIG P365 and FN pistols.