It's Solid... Surprisingly I was able to order the Different size Grips from Springfield... including the new FC Grip which makes it like a G19X... The 4.0 comes with the Small Grip.. Med is perfect.. the Large feels more like a Glock Gen 3. I also got a couple single sided mag releases before the parts ban... What I really wanted was the Mischief Machine Alum 1911 style Grip Module.. waited for months for it to come back in stock, then just got denied... But I'll see if my FFL can order it for me. It's a great gun.