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: Black
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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ROCK ISLAND 140MM PLUS 4 BASEPAD - BLACK
Most excellent! Bought for the RIA 1911A2 TAC ULTRA FSHC 51567 in 45ACP. Work great! Don't need the plastic liners.. easy install!
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Amazing baseplate
Literally so cool these guys make products for this gun. Everything fit flawlessly and it honestly adds so much more to the RIA tac ultra. Thank you again for the fast shipping and ability to manufacture these. Will be many many purchases from me.
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RIA Base Pad
Fits snugs and great look.
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Magazine Extension
Great Product, easy install
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Magazine Extension s
Great product for my RIA A2 ultra 9mm Thanks
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Magazine Extension s
Great product for my RIA A2 ultra 9mm Thanks
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Extended magazine
Excellent they work well
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Rock island
Great high quality product, did not slide back with the factory spring but easy fix ,I combined it with the mbx spring and follower. Works flawless!!!
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Rock island 140mm base
Great look, great fitment and great price. All around awesome deal