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Sparrow Dynamics manufactures and sells California-legal featureless AR-15 rifle grips and components—the kind of parts you need to stay compliant without a bullet button or magazine lock. Their flagship product is the CRG-15 Compliant Rifle Grip, engineered specifically to help shooters navigate California's complicated assault weapon regulations.
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01 // DETAILS
Full description and what we offer
Sparrow Dynamics manufactures and sells California-legal featureless AR-15 rifle grips and components—the kind of parts you need to stay compliant without a bullet button or magazine lock. Their flagship product is the CRG-15 Compliant Rifle Grip, engineered specifically to help shooters navigate California's complicated assault weapon regulations.
Their product lineup includes:
Their website is a live inventory system. If you can add it to your cart, they have it in stock. No backorders—they don't sell things they don't have.
Located in Shingle Springs, California, they aim to ship the next business day after order placement (closed Saturday and Sunday). Standard rates:
| Shipping | Cost |
|---|---|
| Flat rate (Standard) | $8 |
| Free shipping | Orders over $70 (excludes CA, AK, HI) |
| Transit time | ~3 days via USPS outside California |
Transit times are USPS travel days only—they don't include processing time. Your order starts shipping the next business day, then USPS takes it from there.
Sparrow Dynamics goes beyond just selling parts. Their website includes:
They've tracked the magazine capacity court battles through multiple rulings and provide current status updates—including details on the Supreme Court petition filed in August 2025 (Case #25-198) and when decisions might come down.
If you're building in California, you need to understand the difference between:
Their site explains California Code of Regulations Title 11, Division 5, Chapter 39 in plain language—covering everything from barrel length definitions to what constitutes a "forward pistol grip" under state law.
Sparrow Dynamics operates as a straightforward parts supplier for shooters who want California compliance without compromising function. They stock what they sell, ship fast, and provide the legal context you need to make informed build decisions.
Flyers, event shots, and range conditions shared by the community
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