Primary Arms vs RSR
Both catalogs are synced into one shared vocabulary, so the same UPC can be counted on either side and matched across them. Everything below is what we measured in the two feeds — how much each one lists, how much of it is the same product, and what only one of them carries.
| Primary Arms | RSR | |
|---|---|---|
| Active SKUs | 788 | 29,927 |
| Distinct UPCs | 787 | 29,924 |
| Shared UPCs (both carry) | 485 | |
| Only at this distributor | 302 | 29,439 |
| Uptime | 99.5% | 99.9% |
| Integration | API | API |
| Freshness | ||
What each one lists most of
Primary Arms and RSR describe their catalogs in their own words, and we resolve both against one shared product vocabulary before counting. A category below therefore means the same thing on either side. Each list is that distributor’s own largest categories, counted in active listings.
Primary Arms
- Ammunition
- 276
- Magazine
- 267
- Parts & Components
- 204
- Optic
- 10
- Handcuffs & Accessories
- 6
- Rail Accessories
- 6
- Safety & Protection
- 4
- LE RESTRICTED Optics
- 3
RSR
- Firearm
- 8,362
- Parts & Components
- 6,523
- Optic
- 3,583
- Ammunition
- 2,529
- Magazine
- 1,973
- Holster
- 1,447
- Knife & Tool
- 926
- Tools & Maintenance
- 905
Parts & Components, Optic, Ammunition and Magazine appear in both lists, so those counts can be read against each other directly.
Each list stops at that distributor’s eight largest categories. A category on one list and not the other is one we have not counted here, not one that distributor does not carry.
Where each one will ship it
Taken from each company’s own site on the dates shown on their individual pages. Running a drop-ship programme and naming where the parcel goes are separate questions, and most distributors answer only the first — so “Not stated” below means they have not published it, not that they refuse.
| Primary Arms | RSR | |
|---|---|---|
| Ships to your store | Yes | Yes |
| Offers drop-shipping | Not stated | Yes source |
| Ships to your customer's FFL | Not stated | Not stated |
| Ships to your customer's address | Not stated | Not stated |
| Ships NFA items to a receiving SOT | Not stated | Not stated |
RSR says they drop-ship but does not publish where the parcel goes. Ask them before you promise a customer a delivery address.
Every distributor here ships to your own licensed premises — that is what a wholesale account is, not a policy any one of them publishes. Confirm anything you will act on directly with the distributor.
Which should you open?
RSR lists 29,924 distinct UPCs to Primary Arms's 787 — about 38× the breadth. 485 UPCs are carried by both — 62% of what Primary Arms lists and 2% of what RSR lists. Beyond that overlap, 302 UPCs appear on Primary Arms alone and 29,439 on RSR alone. If you open one account, RSR is the wider of the two on its own — it leaves 302 UPCs unreachable, against 29,439 if you open Primary Arms instead. Carrying both reaches 30,226 distinct UPCs, 302 more than RSR covers alone. The largest category in both lists is Parts & Components — RSR lists 6,523 there to Primary Arms's 204. Over the window we monitor, the Primary Arms feed answered us 99.5% of the time and the RSR feed 99.9%.
This is arithmetic on the counts above, not a recommendation of one company over the other. Which account is worth opening also depends on terms and on what your customers ask for, neither of which is in the catalog data we measure. What each company publishes about shipping destinations is in the table above it.
Primary Arms
Primary Arms syncs the smallest catalog Project Parabellum connects to today, delivered through a dealer API on the same automated schedule as the other API-connected distributors here. Because the catalog is narrow, it works best as a secondary source that fills a specific gap rather than as the account a storefront builds its general inventory around.
RSR
RSR Group syncs a broad catalog spanning handguns, long guns, ammunition, optics, and a deep accessory line through a dealer API. Project Parabellum pulls RSR's full catalog and stock positions on the same automated schedule as the other API-connected distributors, so a dealer can see what RSR has today rather than relying on a static, periodically-updated catalog file.
Applying for a dealer account
- Apply for a Primary Arms dealer account — The narrow catalog makes this a supplemental source rather than a primary distributor.
- Apply for a RSR dealer account — API access for your own store is a separate request after the account is active.
Both links leave this site. Applications are submitted to, reviewed by, and approved by the distributor themselves — Project Parabellum is not part of that process and cannot speed it up or vouch for you.