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51FIFTY

Current AR-15 style rifle manufacturer located in Texas.
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51FIFTY Firearms Models

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EVOLVE SERIES

9mm Para., .380 Auto, .357 SIG, .308 Win., .45 ACP, .40 S&W, 5.56 NATO, or .300 AAC Blackout cal., R.A.C. System, fixed (standard) or adj. gas block, 5 1/2-14 1/2 in. barrel, choice of X-Brake (standard), thread protector, or Precision muzz...

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Evolve-10

.308 Win. cal., fixed gas block, 12 1/2 in. barrel, red dot mounts, ARCA-10 handguard w/QD cups, black Nitride BCG.

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Evolve-15

5.56 NATO or .300 AAC Blackout cal., 8 in. (5.56 NATO, standard) or optional 6-14 1/2 in. barrel, ARCA-15 handguard.

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EVOLVE SERIES RIFLE

9mm Para., .357 Sig., .40 S&W, .308 Win., 6.5 Creedmoor, 5.56 NATO, .300 Blackout, 6.8 SPC, 6.5 Grendel, 7.62x39mm, .223 Wylde, 10mm, or .45 ACP cal., R.A.C. System, 16-20 in. barrel, ELF-SE flat or curved (standard), ELF Match Pro SE, AR g...

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Evolve-9

9mm Para., .357 Sig., or .40 S&W cal., 16 in. barrel, optional Optimum backup iron sights, ARCA-15 handguard, choice of black Nitride, black PVD, copper TiN, or gold TiN BCG.

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Evolve-9 Comp

9mm Para. cal., 16 in. carbon fiber barrel, optional HiperFire Hipertouch Competition trigger, black PVD, copper TiN, or gold TiN BCG, fixed or adj. carbon fiber buttstock and grip, ARCA-15 handguard, optional Optimum Cantilever scope mount...

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Evolve-10

.308 Win. or 6.5 Creedmoor cal., fixed or adj. gas block, 16-20 in. barrel, optional Optimum backup iron sights, ARCA-10 handguard, black Nitride (standard) or gold TiN BCG.

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Evolve-15

5.56 NATO, .300 Blackout, 6.8 SPC, 6.5 Grendel, or 7.62x39mm cal., fixed (standard) or adj. gas block, 16 or 18 in. barrel, optional Optimum backup iron sights, ARCA-15 handguard, black Nitride (standard), black PVD, copper TiN, or gold TiN...

Evolve-15 Comp Image

Evolve-15 Comp

.223 Wylde chamber, 16 in. carbon fiber barrel, optional HiperFire Hipertouch Competition trigger, optional Optimum Cantilever mount, fixed or adj. carbon fiber buttstock and grip, ARCA-15 handguard, black PVD, copper TiN, or gold TiN BCG.

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Evolve-45

10mm or .45 ACP cal., 16 in. barrel, optional Optimum backup iron sights, ARCA-15 handguard.