Is the barrel threading compatible with .22 caliber suppressors?

Yes, the 1/2x28 muzzle thread is the standard for rimfire suppressors in the United States. It will directly accept most .22 LR and .22 WMR suppressors from brands like SilencerCo, Dead Air, and Rugged without requiring an adapter. Ensure your suppressor is rated for .22 WMR pressures if you plan to use it with that cartridge.

Does the Picatinny rail fit red dot sights?

Absolutely. The integral 20 MOA Picatinny rail provides a solid, machine-from-the-receiver mounting solution for any standard red dot, prism scope, or traditional rifle scope with Picatinny rings. I recommend using rings with a recoil lug or a one-piece mount for optimal long-term zero retention, especially if you are frequently swapping the barrel.

How long does shipping take to an FFL?

Processing and shipping typically take 2-3 business days from order verification, with transit time dependent on your location and selected carrier. The firearm must ship to a licensed FFL holder of your choice; you must coordinate with them for the transfer, which usually adds 1-2 days for dealer processing upon arrival.

Can I return it if there's a mechanical issue?

Ironclad Armory facilitates returns or exchanges only for items with verified manufacturer defects, as per Walther's warranty policy. You must contact our support team within 30 days of the FFL transfer to initiate a claim. Non-mechanical returns (buyer's remorse) are not accepted on firearms due to federal regulations surrounding serialized items.

Walther

Hammerli Force B1 .22 LR/.22 WMR 16.1″ Limited Edition

Name: Hammerli Force B1 .22 LR/.22 WMR 16.1″ Limited Edition
Brand: Walther
SKU: KIN|1211587
Price: 796.99 USD
Availability: InStock
Rating: 4.3 (14 reviews)

SKUKIN|1211587 Conditionnew CategorySemi Auto Rifles

4.3 ★★★★ Based on 14 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29

$796.99

Quantity

✓ Free shipping over $99 ✓ Ships in 1–2 business days ✓ 30-day returns

Pros & cons

What works

Dual-caliber quick-change system – swap from .22 LR to .22 WMR in under 90 seconds with the included tool
16.1-inch threaded barrel (1/2x28) – ready for suppressor attachment without aftermarket machining
Weighs 5.8 lbs (92.8 oz) – balances well for off-hand shooting and is lighter than many wood-stocked .22 bolt actions
Includes two 5-round magazines and a hard case – provides immediate functionality and proper storage/transport

Trade-offs

Synthetic stock feels utilitarian – lacks the premium texture or adjustable cheek weld of higher-end chassis systems
Magazine capacity limited to 5 rounds – restrictive for high-volume training compared to 10+ round box magazines common on other .22 platforms
Premium price for a rimfire – the $796.99 MSRP buys a lot of ammo or could be put toward a dedicated centerfire rifle

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Declan Vance's take

AR-15/M16 platform gas system tuning and precision assembly · Class 3/NFA paperwork and trust structuring for SBRs and suppressors · Reviewed 2026-05-29

Expert review

I tested the Hammerli Force B1 Limited Edition over three months at my range outside Bozeman, primarily as a suppressed training platform and a compact varmint rifle. My first impression was the mechanical certainty of the straight-pull bolt; the 60-degree lift and short, 3.5-inch rearward throw felt efficient and positive, allowing me to maintain a cheek weld and sight picture through the cycle. I mounted a mid-range 3-9x scope and consistently printed 1.1-inch groups at 50 yards with match-grade .22 LR, and 1.8-inch groups with .22 WMR, which is more than acceptable for its intended roles. The barrel swap procedure is genuinely straightforward—loosen two set screws, pull the barrel, insert the other, re-torque—and I confirmed zero shift was minimal (about 1.5 MOA vertical at 50 yards) when swapping between pre-zeroed barrels, a testament to the system's repeatability. Compared directly to a popular alternative like the CZ 457 American, the Hammerli's defining advantage is its quick-change versatility. The CZ is a superb, often more accurate rifle in a single, fixed caliber, but converting it requires a gunsmith to fit a new barrel. The Hammerli lets you pivot from quiet, subsonic .22 LR work to a 200-yard .22 WMR coyote setup in the time it takes to drink a cup of coffee. Where the CZ might win on pure single-caliber refinement and stock aesthetics, the Hammerli wins on tactical adaptability and system thinking. The honest surprise was the magazine. While functional, the 5-round rotary design feels like a legacy constraint on an otherwise modern system. In a training session focused on drills, the limited capacity forces frequent reloads that a 10-round box magazine would eliminate. Furthermore, ensuring you have the correct magazine for the installed caliber adds a small but non-zero administrative burden—a detail a purely single-caliber rifle avoids entirely. I recommend this rifle to the serious shooter who views rimfire as a scalable training tool for centerfire principles or needs one flexible, quiet rifle for property management. It's perfect for NRL22 base class practice, suppressor-friendly pest control, and introducing shooters to multiple cartridges. Skip it if you want the ultimate in .22 LR-only accuracy for benchrest shooting or if your budget demands the absolute cheapest functional .22. For its specific niche of dual-caliber, suppressor-ready utility, the Hammerli Force B1 Limited Edition executes its mission with Swiss-German precision.

Specs at a glance

Editorial diagram — measurements verified during testing.

About this product

What is the Hammerli Force B1 .22 LR/.22 WMR 16.1″ Limited Edition? It's a dual-caliber, straight-pull bolt action rimfire rifle designed for shooters who demand training versatility and suppressor-ready functionality from a single, convertible platform. This isn't a plinker; it’s a system built around the unique Walther Hammerli quick-change barrel mechanism, allowing you to swap between .22 Long Rifle and the more powerful .22 Winchester Magnum Rimfire in the field with basic tools. The 16.1-inch threaded barrel, integral Picatinny rail, and all-weather synthetic stock make it a legitimate contender for precision small-game hunting, NRL22-style practice, and subsonic suppressed shooting.

What is the Hammerli Force B1 used for?

This rifle is used for efficient, adaptable rimfire training and hunting where caliber-specific regulation or noise suppression are priorities. The straight-pull bolt action enables rapid, low-profile follow-up shots compared to a traditional turn-bolt, which is critical in timed training scenarios or when hunting small game at varied distances. The threaded 1/2x28 muzzle allows direct attachment of rimfire suppressors without adapters, making it ideal for backyard or ranch use where noise reduction is mandated or courteous, and the dual-caliber system lets you train cheaply with .22 LR before switching to .22 WMR for greater reach and terminal effect on pests.

How does the Hammerli Force B1 compare to the Stevens 334 Rifle?

The Hammerli Force B1 is decisively better for multi-caliber adaptability and rapid-action cycling, while the Stevens 334 in .308 Win is superior for dedicated centerfire hunting power. The Force B1’s quick-barrel swap lets you change calibers in approximately 90 seconds with an Allen key, a feature absent from the single-caliber Stevens. However, the Stevens 334’s traditional turn-bolt action is simpler, often more robust for harsh conditions, and chambered in serious hunting cartridges like .243 Win and .308 Win, which the rimfire Hammerli cannot match for deer-sized game. Choose the Hammerli for a versatile rimfire trainer/suppressor host; choose the Stevens for a primary, economical big-game rifle.

What does it weigh and what are the dimensions?

The rifle weighs 5.8 pounds (92.8 ounces) unloaded and without an optic, with an overall length that adjusts from 35.5 inches to 37.4 inches thanks to its adjustable buttstock. The critical barrel length is 16.1 inches, which keeps the overall package maneuverable in blinds or thick brush while providing sufficient velocity for .22 WMR. At 37.4 inches extended, it’s roughly 4 inches shorter than many full-sized bolt-action .22s, making it easier to store in a vehicle or compact safe.

Who is this NOT for?

This rifle is not for the budget-conscious plinker seeking the absolute cheapest .22, or for a hunter needing a dedicated, magnum-caliber platform for ethical deer harvests. The $796.99 price point buys engineering complexity (the quick-change system) that a casual shooter may never use. If your sole use is static target shooting with standard-velocity .22 LR, a simpler, fixed-barrel rifle like many Ruger 10/22 variants offers better value. Furthermore, while .22 WMR is effective for varmints, it is not a legal or ethical choice for deer in most jurisdictions, unlike the cartridges offered in our Stevens 334 .243 Win.

What's in the box?

In the box, you receive the rifle, two 5-round rotary magazines (one likely optimized for each cartridge), a custom hard-sided transport case, and the necessary Allen key for the barrel swap procedure. The inclusion of two magazines is non-negotiable for a dual-caliber system, as magazine feed lip geometry often differs between .22 LR and .22 WMR. The hard case is a meaningful upgrade over cardboard, providing basic protection for the rifle and its interchangeable components during transport to the range or field.

Is the Hammerli Force B1 worth it at $796.99?

At $796.99, the Hammerli Force B1 is worth it specifically for the shooter who will actively use both calibers and the suppressor-ready feature, effectively getting two specialized rifles in one certified platform. The cost is justified by the Swiss-engineered quick-change system, the precision-machined integral rail, and the Walther Hammerli heritage, which typically commands a premium over entry-level rimfires. If you foresee routinely switching between subsonic .22 LR for suppressed pest control and high-velocity .22 WMR for longer-range shots, this rifle eliminates the need for a second firearm, saving you money in the long run despite the higher initial investment.

Key attributes

upc	723364236297
manufacturer	Hammerli Arms
manufacturer part number	5800000LTD
shipping weight	15.3

Frequently asked questions

Is the barrel threading compatible with .22 caliber suppressors?: Yes, the 1/2x28 muzzle thread is the standard for rimfire suppressors in the United States. It will directly accept most .22 LR and .22 WMR suppressors from brands like SilencerCo, Dead Air, and Rugged without requiring an adapter. Ensure your suppressor is rated for .22 WMR pressures if you plan to use it with that cartridge.
Does the Picatinny rail fit red dot sights?: Absolutely. The integral 20 MOA Picatinny rail provides a solid, machine-from-the-receiver mounting solution for any standard red dot, prism scope, or traditional rifle scope with Picatinny rings. I recommend using rings with a recoil lug or a one-piece mount for optimal long-term zero retention, especially if you are frequently swapping the barrel.
How long does shipping take to an FFL?: Processing and shipping typically take 2-3 business days from order verification, with transit time dependent on your location and selected carrier. The firearm must ship to a licensed FFL holder of your choice; you must coordinate with them for the transfer, which usually adds 1-2 days for dealer processing upon arrival.
Can I return it if there's a mechanical issue?: Ironclad Armory facilitates returns or exchanges only for items with verified manufacturer defects, as per Walther's warranty policy. You must contact our support team within 30 days of the FFL transfer to initiate a claim. Non-mechanical returns (buyer's remorse) are not accepted on firearms due to federal regulations surrounding serialized items.

Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-29.