The T17 and the new Milsig M17 G3 share several key components, including the same magazine, stock, and shroud. Additionally, both markers can be hopper-fed if needed, making them versatile options for different play styles.

However, the two markers differ significantly in their receivers and internal systems. The T17 features the new Mini D.E.R.P. (Dynamic Exo Retention Platform) and F.B.U. (Flexi Breech Unit), which helps deliver top-level performance and reliability. That said, you will need an Allen key to remove the two screws when disassembling it.

In contrast, the M17 G3 uses the standard Heat Core system and includes a tool-less 2-pin maintenance takedown, allowing for faster and easier servicing in the field. As a result, the G3 is a better option for players who want quick maintenance without extra tools.

While the T17 offers a more realistic experience, the G3 focuses on durability. The T17 is a 1-to-1 scale M4 replica, designed to feel lightweight and highly authentic. However, it does not match the exterior toughness of the G3.

The M17 G3, on the other hand, is built for dirty and demanding conditions. It features a steel plate reinforced nylon receiver, making it far more rugged. Although it looks less realistic than the T17, it delivers superior durability for harsh environments and heavy use.