Rock Island 51487 Rock Ultra MS 45 ACP Caliber with 4.25" Barrel, 8+1

Price History
Rock Island 51487 Rock Ultra MS 45 ACP Caliber with 4.25" Barrel, 8+1

UPC 4806015514879 from 55 retailers

  • .45 ACP
  • Rock Island
Shipping:
ARMSCOR ROCK SERIES - The Rock Island M1911 A1 MS-Tact-II is a semi-automatic pistol chambered in .45 ACP. It features a 4-inch barrel and a standard magazine capacity of 8 rounds plus one in the chamber. The pistol is finished in black on the frame, complemented by gray g...
Armscor Used
Shipping $20
$499.99 Guns.com ★★★★★ (38,455)
Rock Island Armory M1911A1 MS Tact II .45 ACP Pistol
$512.99 Good 4 Guns ★★★★★ (276)

UPC 4806015514879 Price Graph

Today's low is $499.99, 3% below the 180-day average low of $514.13. Over the last 180 days, the lowest price peaked at $541.22 on March 25, 2026 and bottomed at $499.99 on September 6, 2026.

Rock Island 51487 Rock Ultra MS 45 ACP 4.25" 8+1 Black Parkerized Gray G10 Grip
$514.02 Gun Wise
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Free Shipping
$523.99 Cummings Family Firearms ★★★★★ (52)
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CC Fee 3%
$543.99 Cornerstone Arms ★★★★★ (373)
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$544.83 De Leon RX & Sporting Goods ★★★★★ (216)
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CC Fee 6%
$545.85 All Things Firearm ★★★★★ (3)
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$546.85 Georgia Guns & Ammo ★★★★★ (2)
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Shipping $20
$548.37 Custom Creatives Group ★★★★★ (24)

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RIA 1911 ROCK ULTRA 45 ACP MID SIZE 4.25 VZ
Free Shipping > $900 CC Fee 3% $10 Off Code CALIBERKING
$548.89 Armed in Michigan ★★★★★ (714)
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$553.92 Classic Firearms ★★★★★ (2,454)
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$556.99 Alexander's Store ★★★★★ (1,532)
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$558.34 Sharp's Shooting Supply ★★★★★ (34)
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$573.30 Life2A ★★★★★ (3)
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Shipping $19 Free Shipping > $750
$575.00 Riddle Firearms
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Free Shipping $15 Off Orders Over $75 Code CALIBERKING
$580.99 Brickhouse Firearms
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$582.28 The Arsenal Project ★★★★★ (16)
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$585.00 Allied Arms ★★★★★ (310)
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$5 Off - Use Code CALIBERKING
$586.82 Gun Place ★★★★★ (206)
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Free Shipping > $1,000 CC Fee 3%
$587.55 Bunker Hill Ballistics ★★★★★ (9)
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$595.00 Highland Arms ★★★★★ (49)
Rock Island Armory 51487 Rock Ultra M1911 A1 MS 4.25" 45ACP 8+1 Black/G10 Grip
Shipping $25 $25 Off Orders Over $200 Code LOCKNLOAD25
$595.93 Scottsodg.com
ROCK ISLAND ROCK ULTRA MS - 45ACP 4.25" AS 8RD PARKERIZED
$596.00 Birmingham Hill Armory ★★★★★ (16)
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Free Shipping
$604.00 Garrison's Guns ★★★★★ (21)
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$607.99 Palmetto State Armory ★★★★★ (1,164)
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Free Shipping
$610.44 Kinetic Armory ★★★★★ (3)
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$619.99 Timberlake Firearms ★★★★★ (11)
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$625.34 Blackbox Ballistics ★★★★★ (2)
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$627.99 BuyAGun ★★★★★ (3)
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$635.38 Redsand Tactical
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$638.99 C-ME Firearms
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$639.00 EK Tactical ★★★★★ (10)
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$657.18 Shiner Tactical ★★★★★ (6)
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Free Shipping
$657.26 Conkey's Outdoors ★★★★★ (175)
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$693.40 Bulletproof Outfitters ★★★★★ (133)

UPC 4806015514879 Price Graph

Today's low is $499.99, 3% below the 180-day average low of $514.13. Over the last 180 days, the lowest price peaked at $541.22 on March 25, 2026 and bottomed at $499.99 on September 6, 2026.

Daily Deals Email

Products at their 90-day low price.

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