Description
The Gen5 Glock frames left a noticeable cutout at the heel of the grip along with that open channel in the backstrap, and this Rival Arms two-piece magwell tackles both at once. It funnels your magazines home with a wider, flared opening while filling in the gap that tends to snag mags or collect pocket lint and range grit. The result is a cleaner grip line and reloads that find their mark even when you are not looking down at the gun.
What the Rival Arms Two-Piece Magwell Does for Your Reloads
A flared magwell earns its keep the moment you fumble a reload under pressure. The wider mouth acts like a funnel, guiding the magazine straight into the well so you spend less time fishing for the right angle. Competitive and duty shooters lean on this design for a reason, and folks running Gen5 guns often report faster, more consistent mag changes once they add one. It also gives your pinky a touch more real estate, which helps with grip and recoil control on the smaller 17 and 34 sized frames.
Built From Anodized Aluminum for the Long Haul
Rival Arms machines this piece from aluminum and finishes it in a hard black anodize, so it shrugs off the dings and holster wear that a bare polymer grip base would take. Aluminum also lets polymer magazines slide over it smoothly, which is part of why metal magwells feel slicker on the reload than the frame alone. The finish matches the black Gen5 aesthetic without looking bolted on.
Fitment and Installation on Your Gen5 Glock
This magwell is built for the Gen5 Glock 17, 22, 34 and 35. The two-piece layout is designed for a straightforward install with the included hardware, no trip to a gunsmith required. Worth noting up front: it does not fit the Glock 36, 42 or 43. If you run a Gen5 full-size or long-slide competition gun, this is a simple upgrade that cleans up the grip and sharpens your reloads.
Key Specifications
- Manufacturer: Rival Arms
- Model: Two-Piece Magwell
- Manufacturer Part Number: RARA70G121A
- UPC: 788130032053
- Material: CNC-Machined Aluminum
- Finish: Black Anodized
- Color: Black
- Brand Fit: Glock
- Compatible Models: Gen5 Glock 17, 22, 34, 35
- Design: Two-Piece Flared Magwell / Grip Plug
- Installation: No Gunsmithing Required
- Warranty: Limited Lifetime Manufacturer Warranty
What’s Included
- Rival Arms Two-Piece Magwell
- Mounting screws
- Hex key(s)
Frequently Asked Questions
Which Glocks does the Rival Arms Two-Piece Magwell fit?
It is designed for the Gen5 Glock 17, 22, 34 and 35 frames. It does not fit the Glock 36, 42 or 43. If you are running a Gen5 full-size or competition long-slide, you are good to go.
Do I need a gunsmith to install this magwell?
No. The two-piece design is made to be a straightforward, drop-in install using the included screws and hex key. Most people have it mounted in a few minutes on the workbench with no permanent modification to the frame.
Will a magwell actually make my reloads faster?
The flared opening works like a funnel, guiding the magazine into the well so you do not need perfect alignment to seat it. That tends to speed up reloads and make them more consistent, especially under pressure or when your eyes are on the target. It also fills the open gap in the Gen5 grip that can otherwise snag a mag on the way in.
Does the aluminum construction hold up better than a polymer magwell?
Aluminum with a hard anodized finish shrugs off holster wear and the dings that come with training, and it protects the base of your polymer grip. Metal also lets polymer magazines slide over it more smoothly, which contributes to a cleaner reload feel.





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