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Nail Guns · Comparison

The Metabo HPT 18V MultiVolt Framing Nailer (NR1890DRA) meets
the Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321)

The framing nailer reviewers reach for first, with the best balance in its class and an air-spring drive that sinks 3.5-inch nails into dense LVL without flinching.. We tested it head-to-head against the Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321) ($99) across 6 key dimensions.

Metabo HPT NR1890DRA 18V framing nailer kit with battery, charger, and bag on white background
BEST

Metabo HPT 18V MultiVolt Framing Nailer (NR1890DRA)

“The framing nailer reviewers reach for first, with the best balance in its class and an air-spring drive that sinks 3.5-inch nails into dense LVL without flinching.”

$450
Our Score
77.3 / 100
Buy on Amazon
Ryobi ONE+ 18V AirStrike 18-Gauge Brad Nailer P321 three-quarter view on white background
VALUE

Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321)

“The DIY nail gun reviewers call a shop must-have: hose-free 18-gauge brad work, nearly 1,900 nails per charge, and a price that undercuts every pro tool here.”

$99
Our Score
63.3 / 100
01

Head-to-Head Breakdown

Power
25% of score +
Metabo HPT
85
Ryobi
45
Metabo HPT 18V MultiVolt Framing Nailer (NR1890DRA)

Miillers Construction sank structural nails deep into thick LVL with very few proud nails even while bump firing; Dave Does Carpentry clocked it at a fast 2.7 nails per second.

Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321)

Proper DIY drove brads cleanly into trim and plywood, but by design an 18-gauge brad nailer fires thin 1.2mm fasteners up to 2 inches, so its absolute driving power sits well below the framing tools here.

Balance
20% of score +
Metabo HPT
95
Ryobi
45
Metabo HPT 18V MultiVolt Framing Nailer (NR1890DRA)

Dave Does Carpentry called it the only nailer tested with perfect weight distribution, and Miillers Construction said it has the best balance of any gun in the shootout.

Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321)

Proper DIY noted that at roughly 2.5 kg bare it is heavy and bulky for an 18-gauge trim tool, which becomes tiring over a long day.

Ease
15% of score +
Metabo HPT
60
Ryobi
50
Metabo HPT 18V MultiVolt Framing Nailer (NR1890DRA)

Good depth control and an open magazine for quick jam clearing, but Tools and Stuff flagged the 2-second tip time-out and Miillers Construction disliked the 10 to 15 minute auto-sleep.

Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321)

Proper DIY showed it works fine for single shots, but it has a noticeable mechanical cycling delay before each nail fires and lacks the speed of a pneumatic gun.

Build
15% of score +
Metabo HPT
80
Ryobi
80
Metabo HPT 18V MultiVolt Framing Nailer (NR1890DRA)

Tools and Stuff praised the sturdy aluminum magazine, redesigned nose, and easy reset; the sealed air-spring mechanism is regassable rather than disposable.

Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321)

731 Woodworks reported it shrugs off heavy shop abuse and accidental drops with no durability issues.

Runtime
15% of score +
Metabo HPT
50
Ryobi
100
Metabo HPT 18V MultiVolt Framing Nailer (NR1890DRA)

Floor+scale: 50 + ((500-500)/(1900-500))*50 = 50. 500 framing nails per charge is the functional baseline of this set; heavier nails draw more energy than brads.

Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321)

Floor+scale: 50 + ((1900-500)/(1900-500))*50 = 100. Proper DIY measured nearly 1,950 brads on a single 4.0Ah pack, the best runtime in this group by a wide margin.

Trust
10% of score +
Metabo HPT
85
Ryobi
85
Metabo HPT 18V MultiVolt Framing Nailer (NR1890DRA)

Metabo HPT (the former Hitachi Power Tools) is a long-established framing-nailer brand with a strong professional track record and a lifetime tool warranty.

Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321)

731 Woodworks pointed to the dependable Ryobi ONE+ platform of more than 300 tools as a proven, healthy long-term ecosystem.

02

Strengths & Weaknesses

Metabo HPT 18V MultiVolt Framing Nailer (NR1890DRA)

+ Strengths
  • Best-in-class balance, with Dave Does Carpentry calling the center of gravity perfect so the nose does not dip during fast work
  • Sinks 3.5-inch framing nails deep into dense LVL, and Miillers Construction named it his number one pick if he could keep only one
  • Aggressive bottom teeth that Dave Does Carpentry scored first for skewing studs and trusses at steep angles
Weaknesses
  • Tools and Stuff criticized the 2-second tip time-out that locks you out if you line up a shot too slowly
  • Miillers Construction disliked the awkward power button and the auto-sleep that shuts the tool down after 10 to 15 minutes
  • Depending on the kit, the belt hook and no-mar tip can cost extra, which Tools and Stuff called frustrating on a premium tool
Key flaw: The annoyances are about controls, not capability.

Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321)

+ Strengths
  • 731 Woodworks calls it a shop must-have, and Proper DIY says it nails architraves, skirting, and door stops without dragging a compressor and hose around
  • Proper DIY measured nearly 1,900 brads on one 4.0Ah charge, so you can work all day on a single battery
  • By far the cheapest nail gun here, and it taps the huge Ryobi ONE+ battery platform you may already own
Weaknesses
  • Proper DIY found it heavy and bulky at roughly 2.5 kg bare for an 18-gauge finishing tool
  • A noticeable mechanical cycling delay means it does not fire as instantly as a pneumatic brad nailer
  • It only fires 18-gauge brads, so it is not built for framing, structural work, or thick hardwood trim
Key flaw: Proper DIY is candid about the compromises.
03

The Verdict

Our Bottom Line

The Metabo HPT 18V MultiVolt framing nailer is the tool reviewers reach for when they can keep only one cordless framer. In a nine-tool shootout, Miillers Construction called the 18V version his number one if he could choose just one to work with, and Dave Does Carpentry ranked it first place overall in his points-based testing. The reason both keep coming back to it is balance. Dave Does Carpentry called it the only gun he tested with perfect weight distribution, so the center of gravity sits right where you grip it and the nose does not dip during fast work.

BEST
Metabo HPT 18V MultiVolt Framing Nailer (NR1890DRA)
Metabo HPT NR1890DRA 18V framing nailer kit with battery, charger, and bag on white background

The Metabo HPT 18V MultiVolt framing nailer is the tool reviewers reach for when they can keep only one cordless framer. In a nine-tool shootout, Miillers Construction called the 18V version his number one if he could choose just one to work with, and Dave Does Carpentry ranked it first place overall in his points-based testing. The reason both keep coming back to it is balance. Dave Does Carpentry called it the only gun he tested with perfect weight distribution, so the center of gravity sits right where you grip it and the nose does not dip during fast work.

Best for:
  • Serious DIY builders and carpenters framing walls, subfloors, and trusses
  • Anyone who wants the best-balanced heavy-duty cordless framer for all-day comfort
  • Buyers who toenail and skew at steep angles and need aggressive nose teeth
  • Workers already invested in the Metabo HPT 18V or 36V MultiVolt battery platform
  • Pros who want a regassable air-spring tool rather than a disposable mechanism
VALUE
Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321)
Ryobi ONE+ 18V AirStrike 18-Gauge Brad Nailer P321 three-quarter view on white background

The Ryobi ONE+ 18V AirStrike brad nailer wins value by being the nail gun most people actually need first. It is a different tool than our overall pick: an 18-gauge brad nailer for trim, crafts, and light cabinetry rather than a structural framer. That is exactly why it earns the spot. 731 Woodworks calls it an absolute must-have in the shop, and Proper DIY shows it sinking brads into architraves, skirting, and door stops with no compressor and no hose to trip over.

Best for:
  • Weekend DIYers and hobby woodworkers doing trim, crafts, and light cabinetry
  • Anyone who wants a hose-free brad nailer without buying a compressor
  • Buyers who already own Ryobi ONE+ batteries and want the cheapest entry point
  • Trim work where nearly 1,900 nails per charge keeps you off the charger all day
  • Renters and small-shop users who need a light-duty finishing tool, not a framer
04

Specifications

Spec Metabo HPT 18V MultiVolt Framing Nailer (NR1890DRA) Ryobi ONE+ 18V 18-Gauge AirStrike Brad Nailer (P321)
Type 21-degree framing 18-gauge brad
Nail Length 2 to 3.5 in 0.625 to 2 in
Per Charge 500 nails 1900 nails
Firing Sequential + bump Sequential + bump
Weight 8.4 lbs 5 lbs
Magazine 43 nails 105 nails
Battery 18V MultiVolt (36V ready) 18V ONE+
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