Lindcott Armory Pistol · SAAMI
.32 NAA
The .32 NAA is a necked-down .380 ACP case firing a .32-caliber (.312") bullet, developed jointly by North American Arms and Cor-Bon in 2002.
- Caliber
- 0.3129″ · 7.948 mm
- Introduced
- 2002
- Case
- Rimless
- Parent
- .380 ACP
- Primary use
- self_defense, concealed_carry
- Status
- Limited
- Introduced
- 2002
- Type
- Pistol
- Origin
- United States
- Inventor
- North American Arms, Cor-Bon
- Manufacturer
- Cor-Bon, North American Arms
- Standard
- SAAMI
- Status
- Limited
- Availability
- Rare
- Case capacity
- 8 gr H₂O
- Twist (typical)
- 1:16
- Primer
- Small Pistol
- Case type
- Rimless
- Max pressure
- 25,700 psi
- Eff. range
- 25 yd
- Recoil
- 1.5–3 ft·lb
- Subsonic
- Capable
Ballistics
- By real loads
- 1,000–1,350 fps · 19 loads
- Parent case
- .380 ACP
Representative trajectory — modeled from a single velocity input (no published BC for this cartridge yet).
Performance
Buy links open .32 NAA ammunition at Rivertown Munitions.
Dimensionscase measurements · scale drawing · size vs familiar rounds
Case dimensions — the scale drawing at the top of the page is built from these.
SAAMI · approximate| Measure | mm | in | ✓ |
|---|---|---|---|
| Bullet ⌀ | 7.95 | 0.313 | ~ |
| Neck ⌀ | 8.55 | 0.336 | · |
| Shoulder ⌀ | 9.47 | 0.373 | · |
| Shoulder angle | — | — | |
| Base ⌀ | 9.50 | 0.374 | · |
| Rim ⌀ | 9.50 | 0.374 | · |
| Belt ⌀ | n/a | ||
| Rim thickness | 1.14 | 0.045 | · |
| Neck length | — | — | |
| Case length | 17.27 | 0.680 | · |
| Overall length | 24.99 | 0.984 | · |
Size vs familiar rounds
Drawn at true 1:1 — every case is accurate relative to the others. Absolute size depends on your screen's pixel density, so measuring one against a real ruler may be off. .32 NAA is highlighted below.
Missing a dimension for .32 NAA? Some case measurements aren't in a published SAAMI/CIP drawing yet. Have a factory or reamer print? Send it → — verified hard-to-find data earns a free Lindcott sticker.
Factory loads
In production — 19 active loads across 16 brands. Top 15 shown · see all 19 →.
| Brand | Load | Grain | Bullet | FPS | ft·lb | BC |
|---|---|---|---|---|---|---|
| DoubleTap | Defense | 60 | JHP | 1,350 | 243 | — |
| NAA | Standard | 60 | FMJ | 1,222 | 199 | — |
| NAA | HP | 60 | HP | 1,222 | 199 | — |
| CorBon | Performance | 60 | JHP | 1,222 | 199 | — |
| Federal | Premium | 60 | JHP | 1,222 | 199 | — |
| Speer | Gold Dot | 60 | Gold Dot HP | 1,222 | 199 | — |
| Hornady | Critical Defense | 60 | FTX | 1,222 | 199 | — |
| Cor-Bon | Standard | 60 | JHP | 1,200 | 192 | — |
| Doubletap | DT Defense | 60 | Jacketed Hollow Point | 1,050 | 147 | — |
| Cor-Bon | JHP | 60 | Jacketed Hollow Point | 1,050 | 147 | — |
| Graf | Standard | 60 | FMJ | 1,000 | 133 | — |
| Cor-Bon | JHP | 60 | JHP | 1,000 | 133 | — |
| NAA/Corbon | JHP Guard Dog | 60 | JHP | 1,000 | 133 | — |
| Buffalo Arms | Custom | 60 | Hollow Point | 1,000 | 133 | — |
| Fiocchi | FMJ | 60 | FMJ | 1,000 | 133 | — |
Velocities are manufacturer-stated (test-barrel). Discontinued loads dimmed.
Reloading costestimate cost per round vs factory
Estimate your cost per round and how it compares to factory. Inputs are yours — nothing is stored.
Cost estimate only — not load data. Charge weight is your input; follow published manuals for safe charges.
Firearms chambered in .32 NAA
5 models in the database chamber .32 NAA. Browse all →
Lineage
Connected reference
History
North American Arms, makers of mini revolvers and the Guardian pocket pistol, sought a cartridge for a very compact single-stack pistol that would outperform .32 ACP while fitting in a platform too small for .380 ACP. The .32 NAA uses a .380 ACP case necked down to .32 caliber, allowing the Guardian pistol to be chambered for a ballistically superior round while using a narrower barrel. Cor-Bon developed the initial loading. Commercial adoption has been minimal — only NAA Guardian pistols were made for it.
FAQs
- What twist rate does .32 NAA use?
- .32 NAA typically uses a 1:16 twist rate.
- What bullet diameter is .32 NAA?
- .32 NAA uses a 0.3129″ (7.948 mm) diameter bullet.
- Is .32 NAA still in production?
- .32 NAA is limited; typical availability is rare.
- What is .32 NAA used for?
- .32 NAA is primarily used for self_defense, concealed_carry.
- What is .32 NAA based on?
- .32 NAA is derived from the .380 ACP case.
Sources & provenance
Data & sources. Specs compiled from the Lindcott Armory reference; availability counted from 19 live factory loads; the trajectory is modeled (point-mass), not measured. See methodology. Spotted an error? Report it →