Question 1

Which is cheaper, UMP-45 | Grand Prix or UMP-45 | Exposure?

Accepted Answer

Catalog floor: UMP-45 | Grand Prix $1.43 vs UMP-45 | Exposure $1.02. Pattern, float and stickers can invert that on inspect markets.

Question 2

Are these the same collection for a trade-up?

Accepted Answer

No — UMP-45 | Grand Prix is The Chroma 2 Collection, UMP-45 | Exposure is The Spectrum 2 Collection. Trade-up output weights follow input collections.

Weapon	UMP-45	UMP-45
Rarity	Restricted	Restricted
Collection	The Chroma 2 Collection	The Spectrum 2 Collection
Listed price	$1.43	$1.02
Float range	0.25 – 0.35	0 – 0.55
Missing wears	FN, MW, WW, BS	None
StatTrak	Yes	Yes
Souvenir	No	No

UMP-45 | Grand Prix vs UMP-45 | Exposure