Product Description
Rock Island users have asked us for a custom basepad to match our "Fattie" magwell ever since we brought it out. This is that basepad. (Also works on Para-Ordnance P-16 and P-18.)
- +4 capacity in 9mm or .38 Super (+2+ in .40 or 10mm) for 21+1 and sometimes 22+1 performance!
- Can be used on a .45 -- just remove the plastic insert, or trim the "legs" of the insert.
- Legal for USPSA, 3-Gun competition (meets the 140mm rule)
- Works with TF "Fattie" magwell and RIA factory magwell.
- Uses the stock spring.
- Includes modified Arredondo Accessories insert for jam-free function beyond 18 rounds
Note: Works with Mec-Gar Para mags, and with Rock Island mags. HOWEVER, Rock Island recently started offering magazines that are slightly longer than prior generations (notably in .40). If you are shooting USPSA events, be sure to measure your assembled mags to be sure they fit the USPSA gauge!
Weight: 1.75 ounces
Material: Aluminum
Color: Red
Note: Does not fit the Rock Island 5.0
NOTE: Due to state department restrictions we cannot ship this part internationally.
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Product Reviews
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Mag extender is a must have
Easy to install and +4, it's a no brainer!!
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Exceeds Expectations
I decided to roll my own race gun with an RIA Tac Ultra, and I went hunting for mag extensions. I purchased one and just ordered two more. Runs great, has that CDI factor, and it’s easy to install.
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Perfect
Looks and feels amazing, no issue feeding
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Base plates
Love them. Fit and work perfectly. Will be ordering more for my Canik. I want more parts besides the base plates for it tho.
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10mm base pads
Fit & finish is amazing! Flawless design and easy installation… just incredible! I’m ordering some for 3 more.
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Aluminum base pad
This product is exceptional. The quality is perfect and the anodizing is flawless!! Will be buying more to put on all my magazines.
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Magazine extensions fattie
The quality was superb. Worth every penny. I was making a custom .45 ACP pistol that needed a magwell. The factory handle didnt finish the way I wanted to. After in stalling the fattie magwell, the oem magazine would get burried inside magwell. So I ordered 3 fattie extensions. Now they protrude exactly where I want them. Great work and craftsmanship. thank you.
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Baseplate
These are excellent and made with great quality. Sturdy and easy installation. Perfect function and amazing look and feel. It’s a must have addition.
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ROCK ISLAND/PARA 140MM PLUS 4 BASEPAD - RED
Installed 4 of these and ran them on my RIA Pro Ultra Match 9mm today with zero issues. Really like the way they straighten out the mag to stand 90 degrees vertical while reloading - much better than stock design that allows fumbles. ? Have photos but don't see where I can upload them.
