Nosler Muzzle Adapter — .22 Caliber, 1/2"-28 TPI Thread Pattern (Part 97201 | UPC 054041972017)
Get clean, concentric muzzle-device fitment on your small-bore builds. The Nosler Muzzle Adapter (97201) is engineered for .22 caliber applications and cut with the industry-standard 1/2"-28 TPI thread pattern used across many .22 centerfire and rimfire platforms. Whether you’re aligning a new muzzle brake, compensator, or thread protector, this adapter delivers the precise interface you need for reliable performance and repeatable zero.
Why Choose the Nosler .22 Cal 1/2-28 Adapter?
Purpose-Built for .22 Caliber: Sized for .224" projectiles common to .223 Rem/5.56 NATO and many .22 rimfire barrels, helping maintain proper bore clearance and gas flow.
Industry-Standard Threads: 1/2"-28 TPI compatibility streamlines installation with the most common small-bore muzzle devices.
Concentricity You Can Trust: Precision machining supports straight, square alignment to the bore—key for accuracy and device effectiveness.
Versatile Use Cases: Ideal for pairing muzzle brakes, compensators, and thread protectors specified for 1/2-28 (verify device/bore compatibility).
Built for Real-World Use: Robust construction stands up to range days, training cycles, and field use while preserving thread integrity.
Key Features & Specs
Brand / Model: Nosler Muzzle Adapter
Caliber Class: .22 / .224"
Thread Pattern: 1/2"-28 TPI (right-hand)
Part Number: 97201
UPC: 054041972017
Use Case: Interface/adapter for properly threaded .22-caliber barrels and compatible 1/2-28 muzzle devices*
*Always verify your barrel’s shoulder diameter, thread length, and device internal bore to ensure safe clearance for .224" projectiles.
Compatibility Notes
Platforms: Common on .223 Rem / 5.56 NATO AR-15 barrels and many .22 LR precision/rifle barrels using 1/2-28 threads.
Devices: Works with 1/2-28 brakes, comps, and thread protectors sized for .22 cal.
Check Before You Install: Confirm thread pitch, shoulder geometry, device bore, and timing method (shims/crush washer per device maker) for proper alignment.
Performance Advantages
Repeatable Alignment: Correct, square engagement helps devices perform as designed—reducing POI shift and aiding recoil control.
Protects Investment: Quality thread engagement mitigates cross-threading and helps preserve your barrel’s muzzle threads over time.
Cleaner Setup: Proper fitment reduces wobble and hot-gas leakage that can affect accuracy and consistency.
Ideal Use Cases
AR-15 and Varmint Rifles chambered in .223/5.56 seeking a reliable 1/2-28 interface for brakes and comps.
.22 LR Trainers & PRS Rimfire rigs needing consistent, concentric device fitment.
Hunting & Field Guns where secure, aligned thread interfaces help maintain zero and device function.
Installation Tips (High-Level, Non-Instructional)
Verify Thread Pitch on both barrel and device (1/2-28 RH).
Inspect Shoulders & Threads for burrs; ensure clean, oil-free mating surfaces.
Time the Device as the manufacturer specifies (shims or crush washer); avoid over-torque.
Re-Confirm Zero: Any muzzle-end change can shift POI—re-zero before your next hunt or match.
Care & Maintenance
Thread Hygiene: Keep threads clean; lightly oil for storage to prevent corrosion.
Periodic Checks: After high round counts, verify device tightness and visual alignment.
Protect When Unused: Use a thread protector to shield the barrel’s muzzle threads during transport.
Safety & Compliance
Use only with compatible .22-caliber barrels and devices. Ensure adequate internal bore clearance for .224" bullets. Follow all federal, state, and local laws for muzzle devices and firearm configuration. Always confirm the firearm is unloaded before installation or inspection.
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Nosler Muzzle Adapter — .22 Caliber, 1/2"-28 TPI (97201 | 054041972017): precise, concentric interface for .22-caliber barrels and 1/2-28 devices—built for accuracy, reliability, and clean, professional muzzle setups.
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