The MAC-10 Case Hardened Blue Gem is a particularly rare CS2 SMG that is a variant of the popular Case Hardened skin. A Blue Gem is a community-determined version of the skin based on how much blue it features.

While Blue Gems are typically associated with the Case Hardened versions of CS2 knives, this also extends to the MAC-10 Case Hardened, too. All the Blue Gem Patterns and tiers for the MAC-10 Case Hardened can be found below.

MAC-10 Case Hardened Blue Gem Tier 1 Patterns

MAC-10 Case Hardened Blue Gem Pattern 667 (Tier 1)
MAC-10 Case Hardened Pattern 667

There are just five MAC-10 Case Hardened Blue Gem Tier 1 Patterns, such is their rarity. They are the best of the best, with no one specific Pattern determined by the community to be the perfect Blue Gem MAC-10. Try out all of these to see what you like best, but be warned: they’re also the most expensive.

  • MAC-10 Case Hardened Blue Gem Tier 1 Patterns: 239, 349, 406, 503, 667

MAC-10 Case Hardened Blue Gem Tier 2 Patterns

MAC-10 Case Hardened Blue Gem Pattern 195 (Tier 2)
MAC-10 Case Hardened Pattern 195

If you ask me, there’s not much in each of the MAC-10 Case Hardened Blue Tier 2 Patterns, even from the Tier 1 ones. They are still very, very blue, and to separate them is kind of splitting hairs. Even for pretty die-hard collectors, these Tier 2 MAC-10 Blue Gems should be more than good enough.

  • MAC-10 Case Hardened Blue Gem Tier 2 Patterns: 80, 195, 199, 251, 292, 315, 345, 381, 400, 414, 475, 598, 807, 972

MAC-10 Case Hardened Blue Gem Tier 3 Patterns

MAC-10 Case Hardened Blue Gem Pattern 34 (Tier 3)
MAC-10 Case Hardened Pattern 34

You can probably already guess the deal with the MAC-10 Case Hardened Blue Gem Tier 3 Patterns. A little bit less blue than the Tier 2 Patterns, but overall still more than the Tier 4 ones. There are a lot of MAC-10 Case Hardened Patterns deemed good enough to be Tier 3, so you have plenty to choose from here.

  • MAC-10 Case Hardened Blue Gem Tier 3 Patterns: 6, 8, 10, 18, 19, 34, 41, 58, 72, 76, 95, 107, 108, 111, 114, 117, 119, 127, 138, 144, 147, 153, 156, 182, 185, 190, 208, 214, 222, 241, 242, 255, 285, 295, 309, 311, 313, 328, 346, 358, 369, 376, 378, 390, 399, 402, 403, 424, 434, 436, 453, 457, 458, 464, 473, 501, 502, 523, 525, 528, 546, 553, 561, 566, 570, 573, 579, 587, 602, 604, 629, 633, 644, 652, 657, 658, 669, 699, 705, 707, 716, 720, 735, 748, 751, 788, 801, 808, 811, 831, 835, 858, 871, 880, 881, 885, 889, 899, 933, 944, 959, 960, 964

MAC-10 Case Hardened Blue Gem Tier 4 Patterns

MAC-10 Case Hardened Blue Gem Pattern 22 (Tier 4)
MAC-10 Case Hardened Pattern 22

There are tons of MAC-10 Case Hardened Blue Gem Tier 4 Patterns. And honestly? Compared to the Blue Gems on CS2 knives, the Tier 4 Patterns for the MAC-10 Case Hardened might just be the best out there. While the blue isn’t a perfect blue on these options, with much more prominent hints of purple, there’s still not all that much yellow. As always, you should try out as many of these as you can if you’re planning to add one to your inventory.

  • MAC-10 Case Hardened Blue Gem Tier 4 Patterns: 7, 13, 22, 24, 27, 32, 52, 56, 59, 61, 67, 78, 88, 103, 116, 118, 128, 135, 136, 141, 143, 159, 162, 163, 164, 168, 173, 176, 180, 191, 198, 203, 206, 220, 250, 253, 256, 264, 269, 273, 275, 279, 280, 282, 283, 293, 299, 306, 314, 316, 332, 342, 356, 362, 367, 371, 372, 373, 398, 421, 425, 429, 430, 440, 441, 442, 443, 445, 451, 455, 456, 462, 466, 489, 499, 500, 506, 507, 513, 518, 531, 533, 560, 569, 577, 583, 586, 612, 613, 615, 617, 618, 623, 630, 632, 640, 650, 655, 672, 679, 703, 704, 709, 710, 714, 715, 721, 741, 746, 747, 749, 753, 764, 768, 778, 785, 792, 793, 804, 806, 819, 829, 830, 837, 838, 839, 847, 859, 866, 867, 873, 877, 894, 897, 904, 913, 917, 919, 922, 923, 926, 928, 931, 958, 968, 979, 982, 990, 995

What CS2 case drops a MAC-10 Case Hardened Blue Gem?

MAC-10 Case Hardened Blue Gem skins drop in the Antwerp 2022, Austin 2025, Rio 2022, Shanghai 2024, and Stockholm 2021 Dust2 Souvenir Packages.

What is the best CS2 MAC-10 Case Hardened Blue Gem Pattern?

There is no one “best” MAC-10 Case Hardened Blue Gem Pattern. All of the Tier 1 Patterns sit in equal stature among the community, so check those options out and decide your personal favorite.

How much does a MAC-10 Case Hardened Blue Gem cost?

Compared to CS2 knife Blue Gems, the MAC-10 Case Hardened Blue Gems don’t inspire anywhere near as much overpay for the best Patterns. You can find most Tier 1 MAC-10 Blue Gem Patterns for around $200 in a good wear rating.

How many MAC-10 Case Hardened Blue Gem tiers are there?

There are four MAC-10 Case Hardened Blue Gem tiers in total.

How do I know if my MAC-10 Case Hardened is a Blue Gem?

Inspect your MAC-10 Case Hardened in your inventory, and hover over the small I icon in the bottom-left of the screen. You will see a value named Pattern Template – see if the number aligns with any of the tiers above. If it does, you’ve got a Blue Gem. With most CS2 knives, you can generally tell a Blue Gem by looking at it, but it’s a little bit different with the MAC-10 Case Hardened.

How does float value affect Blue Gem MAC-10s?

Float value is mostly going to affect the appearance of Blue Gem MAC-10s. A bad float will make it look worse than other MAC-10 Case Hardened skins, even if it’s a good Pattern. Because of this, float value can also impact the price.