NcStar Picatinny Low Profile Front & Rear Sight Set | Black Polymer | Model: VG166 | UPC: 848754015389
Equip your rifle with compact, reliable backup iron sights that won’t crowd your optic. The NcStar Picatinny Low Profile Front and Rear Sight Set (VG166) mounts directly to MIL-STD-1913 Picatinny rails and delivers a clean, streamlined sight picture that stays out of your way until you need it. Built from durable black polymer to keep weight down without sacrificing everyday toughness, this BUIS pair is ideal for AR-pattern rifles, PCCs, and any modern sporting rifle with a flat-top rail.
Whether you’re adding a mechanical backup to a red dot or creating a minimalist iron-sight build, the VG166 set provides fast target acquisition, practical adjustments, and a low-snag profile built for range days, classes, and field carry.
Why Choose the NcStar VG166 Low Profile Sights
Low-Profile Geometry: Hugs your rail for a sleek, snag-resistant package that complements low or lower-third co-witness optic mounts.
Picatinny-Ready: Installs in minutes on any 1913 Picatinny top rail—upper receivers and handguards with matching height.
Lightweight & Durable: Black polymer construction trims ounces while handling typical bumps, drops, and weather at the range.
Practical Adjustments: Rear windage and front elevation (A2-style post) let you true your zero with common tools.
BUIS Confidence: Mechanical sights give you a fail-safe aiming solution if your primary optic is obscured or the battery dies.
Clean Sight Picture: Slim housings reduce visual clutter, helping you align quickly from unconventional positions.
Key Features at a Glance
Compatibility: MIL-STD-1913 Picatinny rails (equal-height receiver/handguard recommended)
Construction: Black polymer with metal hardware (where applicable)
Adjustments: Rear windage, front elevation (A2 post)
Profile: Low profile, low-snag design for modern carbines
Use Case: Primary irons or backup iron sights (BUIS) for training, competition, and general range use
Finish/Color: Matte black to mitigate glare
Model: VG166
UPC: 848754015389
On-Range Performance
Fast, Repeatable Alignment: Low sight walls and a familiar post/aperture setup support quick sight pictures under time pressure.
Stable Zero: Positive adjustments and secure rail clamping help maintain POA/POI through transitions and transport.
Balanced Handling: Lightweight polymer keeps your muzzle lively for faster target transitions and less fatigue in long courses.
Ideal Builds & Use Cases
Red Dot + BUIS: Pair with a micro red dot for a redundant aiming system on defensive rifles and trainers.
Minimalist Iron-Sight Carbine: Keep it simple, light, and effective for fundamental marksmanship.
Training & Classes: Perfect for optic-off drills, fundamentals refreshers, and new-shooter setups.
Installation & Zeroing Tips
Mounting: Place the rear sight on the receiver rail and the front sight on an equal-height handguard/receiver rail. Tighten screws to manufacturer torque guidance.
Mechanical Zero: Center rear windage; set the front post near mid-height.
Zero Distance: Common zeroes are 50/200 yards or 100 yards. Use front post for elevation and rear for windage.
Confirm & Secure: After your first session, re-check fasteners and confirm zero with your chosen ammo.
Care & Maintenance
Periodic Check: Verify clamp tension after high round counts or bumpy transport.
Keep It Clean: Brush carbon and dust from apertures and the front post; avoid harsh solvents on polymer.
Thread Treatment: A dab of non-permanent thread locker can help resist vibration.
Frequently Asked Questions
Q: Will these sights fit Weaver rails?
A: They’re designed for MIL-STD-1913 Picatinny rails. Some Weaver rails may accept them, but Picatinny rails offer the most secure, spec-correct fit.
Q: Do I need a special tool for elevation?
A: The front sight adjusts like a standard A2 post. A front sight tool is handy, though alternatives can work in a pinch.
Q: Are they durable enough for primary use?
A: Many shooters run polymer sights as primaries on training and recreational rifles. They shine as backup irons alongside optics.
Q: Will they co-witness with my red dot?
A: The low-profile height works with many mounts. Co-witness height depends on your optic mount and receiver/handguard alignment.
SEO Highlights (Quick Scan)
NcStar Picatinny Low Profile Front & Rear Sight Set in black polymer
Fits MIL-STD-1913 rails; rear windage and front elevation adjustable
Lightweight, snag-resistant BUIS for AR-15 and modern sporting rifles
Installs quickly; maintains reliable zero for training and defense
Model VG166, UPC 848754015389
Keep your rifle streamlined and ready with the NcStar Picatinny Low Profile Front and Rear Sight Set (VG166)—the lightweight, budget-friendly BUIS solution that delivers fast alignment, dependable zero, and minimal bulk.
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