B4B BANG 4 BUCK HVLP gravity feed spray gun — 1.4/1.7/2.5mm tips, 1000cc cup & micrometer regulator

The B4B BANG 4 BUCK High Performance HVLP gravity feed spray gun is a versatile automotive and workshop sprayer with 1.4mm, 1.7mm and 2.5mm stainless-steel fluid tips and a 1000cc aluminum cup for base coats, primers, clears and heavy coatings.

This gravity feed spray gun kit is built for hobbyists and professionals who need consistent atomization across a range of coatings — from fine base coats to thicker primers and clear coats. It pairs three nozzle sizes with a one-liter aluminum cup, an integrated micrometer air regulator with gauge, and ergonomic controls so you can dial in pattern, fluid and air delivery for repeatable, high-quality finishes.

How do the 1.4mm, 1.7mm and 2.5mm tips affect what I can spray?

Each nozzle size is optimized for different material viscosities: 1.4mm for thin to medium coatings, 1.7mm for medium-bodied materials, and 2.5mm for heavy primers and high-build products. Choosing the right tip reduces overspray and improves transfer efficiency so coats lay down smoothly.

• 1.4mm: ideal for base coats and low-viscosity clears.
• 1.7mm: suited for standard enamels and thicker topcoats.
• 2.5mm: designed for heavy primers, gel coats, and high-build paints.
• Stainless-steel needles and nozzles: durable for repeated use and solvent exposure.

What controls are available to fine-tune spray performance?

The gun offers three main adjustment points—spray pattern, fluid flow and air pressure—so you can shape spray width, droplet size and material output independently. A true micrometer-style air regulator with gauge lets you set and read air pressure precisely for consistent results across panels and jobs.

• Pattern control: switch between narrow and wide fan shapes for edges or broad coverage.
• Fluid control: tweak needle travel to increase or decrease paint volume.
• Micrometer air regulator with gauge: precise pressure settings improve repeatability.
• Ergonomic trigger pivot: reduces hand fatigue during long sessions.

Is the 1000cc aluminum cup and gravity feed design practical for automotive work?

The one-liter aluminum cup supplies ample material for medium-size panels while keeping weight balanced on the gun thanks to the gravity-feed layout. Gravity feed improves transfer efficiency and reduces wasted paint, especially beneficial when spraying thin coats or detailed parts.

• 1000cc (1L) aluminum cup: large capacity without excessive bulk.
• Gravity feed system: better material flow and less air consumption versus siphon feed.
• Lightweight construction: comfortable for extended use and touch-up work.
• Easy-to-clean metal cup: resists solvent wear and can be reused often.

What should I know about setup, maintenance and nozzle removal?

The kit ships with one nozzle pre-installed and requires a firm twist to remove because it is tightened for air tightness. Regular cleaning after each use and occasional inspection of needles and seals will keep the gun performing; a small adjustment wrench and barbed tail are included to help with servicing.

• Pre-installed nozzle: tightened for shipping — removal may take effort.
• Included wrench and barbed tail: assists quick maintenance and hose connection.
• Routine cleaning: prevents clogging and preserves spray quality.
• Stainless-steel components: increase corrosion resistance and service life.

Who is this for: The B4B BANG 4 BUCK HVLP gravity feed spray gun kit is aimed at automotive refinishers, restoration hobbyists, body shops and DIYers who need a single, adaptable gun for base coats, clear coats, primers and thicker specialty coatings. If you require adjustable pressure control, three nozzle options, and a large, durable cup for medium-scale projects, this kit provides a practical, budget-conscious solution without sacrificing key professional features.