Very similar in size to the 4009 and 4011. The 4010 is slightly more rounded in the back.
- Design allows installation on both .223 and .308 AR-15/AR-10 type receivers.
- A2 sized inner cavity compatible with many accessories available on the market.
- Ergonomically correct finger grooves
- Integrated rear upper extension supports the web of your hand.
- Over molded SUREGRIP™ material provides non-slip grip
- Virtually impervious to oils and solvents
- Comes with The Gapper™