Ruger AR-556 MPR .450 Bushmaster 5rd Magazine 18″ Barrel Black

Features:

  • Lower receiver is fitted with Magpul® MOE® grip and MOE SL? collapsible buttstock on the Mil-Spec buffer tube.
  • Handguard is free-floating for accuracy and the slim 15″ length provides enhanced ergonomics and support.
  • Flattop upper receiver includes an enlarged window for easy ejection as well as forward assist dust cover and brass deflector. CNC-machined from Mil-Spec forging and Type III hard coat anodized for maximum durability.
  • Bolt is machined from high-strength superalloy more than 50% stronger than traditional MSR bolt materials and engineered with tapered lugs to support the large case head of .450 Bushmaster ammunition.
  • The Ruger® Elite 452? AR-Trigger is a two-stage trigger that offers a smooth crisp 4.5 pound trigger pull. It features a full-strength hammer spring for consistent primer ignition and a lightweight hammer that enables a 30% faster lock time over standard MSR triggers.
  • Carbine-length gas system provides the most reliable function with .450 Bushmaster ammunition.
  • Magpul® M-LOK® accessory attachment slots along the 3:00 6:00 and 9:00 positions with additional slots on the angled faces near the muzzle.
  • Cold hammer-forged 4140 chrome-moly steel barrel with ultra-precise 5R rifling and black nitrided finish provides exceptional accuracy longevity and easy cleaning. The 1:16″ twist rate maximizes accuracy with bullets ranging from 170 to 260 grains.
  • Chrome-plated bolt carrier inside diameter and chrome-plated gas key inside diameter provide exceptional resistance to hot gases. The gas key is staked so that it will not loosen after extensive firing.
  • Ruger® muzzle brake is a radial port design that significantly reduces felt recoil and muzzle movement. The 11/16″-24 threaded barrel allows for standard muzzle accessories to be installed.
  • Also includes: One 5-round metal box magazine.

Specifications:

  • Caliber: 450 BUSHMASTER
  • Stock: Black Synthetic Collapsible
  • Handguard: Free-Float M-LOK®
  • Sights: None
  • Barrel Length: 18.63″
  • Thread Pattern: 11/16″-24
  • Twist: 1:16″ RH
  • Capacity: 5
  • Finish: Type III Hard Coat Anodized
  • Height: 7.30″
  • Weight: 7.4 lb.
  • Overall Length: 35.60″ – 38.90″
  • Length of Pull: 11.10″ – 14.40″
  • Grooves: 5
UPC

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Sale!

Ruger AR-556 MPR .450 Bushmaster 5rd Magazine 18″ Barrel Black

Original price was: $1,309.00.Current price is: $957.60.

Availability: 25 in stock

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🚚 Shipping Information

Non-FFL Items
✅ Ships directly from our distributor
✅ Arrives in 3–7 business days

FFL Items (Firearms & Restricted Products)
📦 Must ship to us first due to manufacturer restrictions
⚡ Minimal delay — we ship it out as soon as we receive it
📍 Delivered to your chosen local FFL or available for pickup with us
📅 Total time: 5–10 business days including transfer or pickup scheduling

Quick FAQ – Blackbox Ballistics

Prices & Sales – We price with a standard percent over cost unless MAP restrictions apply. We often run sales, and if you see a better price, give us a shot at meeting or beating it.

Inventory – We’re not a full brick-and-mortar store, so most items ship from distributors. Sometimes we have products in stock — especially popular ammo for pickup day.

Special Orders – Don’t see it? We can probably get it. Just ask.

Returns – See our Return Policy for details. Firearms, ammo, and special orders can’t be returned once transferred or shipped.

Transfers – Yes, we handle transfers from other sellers. By appointment for privacy.

Payments – We accept cash, credit cards, and ACH transfers. Cash/ACH may qualify for a discount.

FULL FAQs

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