Setting up a firearm correctly is critical for performance, safety, and reliability. Here are five common mistakes—and how to avoid them.
Incorrect Iron Sight Placement
- Mounted backwards or too far forward
- Should fold toward the front of the rifle
- Place on the last Picatinny slot for proper spacing
- Prevents damage and maximizes rail space
Mounting Optics on the Handguard
- Gun optics should be mounted on the upper receiver, not the rail
- Handguards don’t hold zero as reliably
- Avoid “bridging” optics like LPVOs across receiver and rail
- Ensures consistent zero and accuracy
Using Cheap Magazines
- Low-quality mags are a leading cause of malfunctionsdh
- Can cause feeding issues mistaken for firearm problems
- Choose reputable, proven brands
- Reliability starts with your magazine
Not Using a Sling
- Slings improve handling and retention
- Prevent setting firearms on the ground
- Modern rifles often support QD sling attachments
- A sling is essential gear—not optional
Illegal Attachments (Vertical Grips on Pistols)
- Vertical foregrips are not allowed on most AR pistols
- Requires proper registration (e.g., SBR status)
- Always check federal, state, and local laws
- Avoid legal trouble by knowing the rules
Key Takeaways
- Proper setup improves safety and performance
- Small mistakes can lead to major issues
- Always prioritize reliability and legal compliance