Parts for Lower Receivers

  • The Armaspec B2 is a skeletonized extended magazine release designed to extend the length of the factory button. The Armaspec B2 makes it easier to release the magazine without changing the grip position.It’s compatible with 5.56/.223 and 7.62/.308 receivers.
  • HIPERTOUCH® ECLipse

    $275.00 $261.25
    Highlights
    • HIPERFIRE®’s Top-of-the-Line AR Trigger
    • Eclipses the Performance of Other Offerings
    • Nickel Bliss™, Electroless Nickel Boron (NiB) Done Right
      • Exceptionally Smooth Feel
      • Enhanced Corrosion Protection
      • Polished Look
    • Virtually No Take-Up
    Bonus Benefits
    • Cam-Over Toggle Engine™
      • Very Hard Hitting Hammer
      • Soft-Start Lock-Up™ for Pre-Ignition Stability
      • You-Adjust Pull Weights of 2½ and 3½ lbs.
    • Straight Trigger Bow
    • HIPERSHOE® Finger Pad Revolution™
      • Changes the Trigger Lever Length for Fine Weight Adjustment
      • Changes the Trigger Lever Length to Further Adjust Pre-Travel
      • Position Your Finger in the Same Place Every Time
      • Reduces the Perception of Trigger Weight Still Further
    Standard Benefits
    • Semi-Auto, Single Stage
    • Crisp, Clean, Trigger Break
    • Very, Short Over-Travel
    • Very, Positive Reset You Can Feel and Hear
  • Features:
    • Large thumb pad for positive tactile indexing
    • Extended skeletonized lever
    • High-speed manipulation
    Material:  8620 Steel, heat treated to 15N-89-91 Finish: Manganese Phosphate
  • Out of stock
    Features:
    • Oval shaped paddle
    • Bolt release allows for fast contact to engage and retract the bolt carrier
    • High-speed manipulation
    • Textured for a non-slip grip, with good looks included
    • Material: 8620 Steel, heat treated to 15N-89-91
    • Finish: Magnesium Phosphate
    Includes:
    • Bolt Catch Spring 1-ea.
    • Bolt Catch Buffer (Plunger) 1-ea.
    • The Paddle™ Oversize Bolt Catch 1-ea.
    • Bolt Catch Roll Pin 1-ea.
  • Out of stock

    MBA-1 Rifle Buttstock

    $139.95 $131.55

    Product Description

    • Fully Adjustable Buttstock assembly to mount to a rifle (A2 Round Standard Tube)
    • Additional 1″ height on cheek rest
    • Additional 1 1/16″ length of pull with extended length buttplate
    • Approximately half the weight of competitors’ adjustable stocks The “MBA” weighs just 1.26 lbs.
    • Fits .223 and .308 AR style rifles
    • Super Strong Glass Filled Nylon
    • Comes with A1 Buttstock screw to connect to A2 standard buffer tube
    • Incorporates Castle Nut and Lock Ring in the design
    • Easy to replace and quick to install

    Features

    • Modular buttstock assembly for the AR
    • Interchangeable with standard A1 or A2 buttstocks or any aftermarket buttstock with overall length of approximately 10.5″
    • Fully Ambidextrous and can be comfortably used shooting off either shoulder (Cheek piece pre-installed for right handed shooters but can be installed on either side for right or left hand shooters)
    • Cheek piece not only moves up and down, it also moves back and forth on the stock
    • NOT interchangeable with carbine/collapsable rifles with telescoping assemblies (6-position tubes). You will need to purchase a MBA-3 or MBA-4 to fit these carbine tubes 

    Compatible Buffer Assemblies:

    • .223 Rifle Buffer Assembly (A2 Round Standard Tube)
    • .308 Rifle Buffer Assembly (A2 Round Standard Tube)
  • Product Description

    • Light weight stock to mount to a rifle (A2 Round Standard Tube)
    • Fits .223 and .308 AR style rifles
    • Super Strong Glass Filled Nylon
    • Comes with A2 Buttstock screw to connect to A2 standard buffer tube
    • Incorporates Castle Nut and Lock Ring in the design
    • 21st century look
    • Ergonomic
    • Easy to replace and quick to install

    Features

    • 0.7 lbs Buttstock for the AR
    • Easy to add a Luth-AR Cheek Piece: Cheek piece will add an additional 1″ height on cheek rest
    • Easy to add a Luth-AR Butt Plate Assembly or 3-Axis Butt Plate Assembly: The assemblies will add an additional 1 1/16″ length of pull with extended length buttplate
    • Interchangeable with standard A2 or A1 buttstocks or any aftermarket buttstock with overall length of approximately 10.5″
    • NOT interchangeable with carbine/collapsable rifles with telescoping assemblies (6-position tubes). You will need to purchase a MBA-3 or MBA-4 to fit these carbine tubes 

    Compatible Buffer Assemblies:

    • .223 Rifle Buffer Assembly
    • .308 Rifle Buffer Assembly
  • Out of stock

    Product Description

    • Fully Adjustable Carbine Buttstock assembly to mount to a carbine rifle (6-positions mil-spec or commercial tube)
    • Additional 1″ height on cheek rest
    • 3-axis Adjustable Butt Plate Assembly extends additional 1 1/16″ length of pull and includes the following movement:
      1. Horizontal for linear adjustment (i.e. length of pull)
      2. Vertical for a perfect butt plate fit into the curvature of the shoulder.
      3. Lateral adjustment for a ½ inch left or right cast
      4. This butt plate assembly is interchangeable with the original MBA-1 Buttstock
    • Includes a Picatinny Rail on the bottom rear of the Stock Body to attach your choice of many accessories.
    • Designed a flat bottom index set screw (10-24) to eliminate that constant rattle of carbine collapsible buttstock. This also allows you to secure the stock in your favorite position.
    • The Black MBA-3 comes with a  medium soft rubber recoil pad, Duro 85.
    • The Luth-AR MBA-3 weighs roughly half that of comparable stocks coming in at just 18.5 ounces.
    • Fits all .223 and most .308 AR carbine style rifles
    • Super Strong Glass Filled Nylon
    • Easy to replace and quick to install
    • Uses 4 out of the 6 positions on a mil-spec or commercial tube

    Features

    • Ergonomic
    • Adapts To Existing Commercial and Mil-Spec Buffer Tubes
    • Certain after Market Commercial Buffer Tubes that exceed  1.172″ diameter, may not fit
    • The vertical struts for the MBA-3 are fixed, therefore the cheek piece is not reversible like the MBA-1 however the cheek piece itself is designed with a cheek pad for left-handed use
    • Caution: the MBA-3 and MBA-4 Carbine buttstocks are not designed to be used with Large Bore Calibers such as .338 Lapua or .50 BMG applications. See our MBA-1 and MBA-2 Rifle buttstocks as alternatives.
    • The MBA-3 Carbine buttstock is NOT interchangeable with A2 standard buffer tube. You will need to purchase a MBA-1 or MBA-2 Rifle buttstock to fit A2 tubes 

    Compatible Buffer Assemblies:

    • .223 Mil-Spec Carbine Buffer Assembly
    • .223 Commercial Carbine Buffer Assembly
    • .308 Mil-Spec Carbine Buffer Assembly
    • .308 Commercial Carbine Buffer Assembly
  • Out of stock

    Product Description

    • Light weight stock to mount to a carbine rifle  (6-positions mil-spec or commercial tube)
    • Fits all .223 and most .308 AR carbine style rifles
    • Super Strong Glass Filled Nylon
    • 21st century look
    • Ergonomic
    • Easy to replace and quick to install
    • Uses 4 out of the 6 positions on a mil-spec or commercial tube

    Features

    • Lightweight buttstock for the carbine AR, weighing in at 9.5 ounces
    • Easy to add a Luth-AR Cheek Piece: Cheek piece will add an additional 1″ height on cheek rest
    • Easy to add a Luth-AR Butt Plate Assembly or 3-Axis Butt Plate Assembly: The assemblies will add an additional 1 1/16″ length of pull with extended length buttplate
    • Adapts To Existing Commercial and Mil-Spec Buffer Tubes
    • Certain after Market Commercial Buffer Tubes that exceed 1.1172″ diameter may not fit
    • Caution: the MBA-3 and MBA-4 Carbine buttstocks are not designed to be used with Large Bore Calibers such as .338 Lapua or .50 BMG applications. See our MBA-1 and MBA-2 Rifle buttstocks as alternatives
    • The MBA-4 Carbine buttstock is NOT interchangeable with A2 standard buffer tube. You will need to purchase a MBA-1 or MBA-2 Rifle buttstock to fit A2 tubes 

    Features

    • Picatinny Rail
    • Revolutionary Anti-Rattle Set Screw

    Compatible Buffer Assemblies:

    • .223 Mil-Spec Carbine Buffer Assembly
    • .223 Commercial Carbine Buffer Assembly
    • .308 Mil-Spec Carbine Buffer Assembly
    • .308 Commercial Carbine Buffer Assembly
  • Out of stock
    MBA-5 features:
    • Lightweight Carbine Buttstock
    • MBA Ergonomic Styling
    • Paddle Adjustment Lever for Rapid Positioning
    • Flared Cheek Rest
    • Integrated Picatinny Rail for Mono-pod attachment
    • Quick Release Cup Pockets, both sides*
    • Anti-Rattle Clamp
    • Rubber Buttpad
    • High-Strength Glass-filled Nylon
    • Length-of-pull: 11.5” collapsed, 14.5” extended
    • Weight: 8.95 oz
    • Fits either Mil-Spec or Commercial carbine buffer    tubes, .233 Rem/5.56mm or .308 Win/7.62mm
  • Features:
    • Integrated trigger guard for higher strength
    • Flared mag well for faster mag changes.
    • Will work with any standard AR-15 upper
    • Billet 7075 T6 Aluminum Alloy
    • Black hard coat anodized (MIL-A-8625 Type III Class 2)
    • 10 oz
    • Available in vibrant anodized and Cerakote colors as unique as its shooter
    FFL Required, only shipped to FFL license holders.
  • Highlights
    • Designed for the Ultimate In AR Performance
    • HIPERFIRE®’s Most Popular Trigger
    • Virtually No Take-Up/Pre-Travel
    • Very Smooth
    Bonus Benefits
    • Cam-Over Toggle Engine™
      • Very Hard Hitting Hammer
      • Soft-Start Lock-Up™ for Pre-Ignition Stability
      • You-Adjust Pull Weights of 2½ and 3½ lbs.
    • Straight Trigger Bow
    • HIPERSHOE® Finger Pad Revolution™
      • Changes the Trigger Lever Length for Fine Weight Adjustment
      • Changes the Trigger Lever Length to Further Adjust Pre-Travel
      • Position Your Finger in the Same Place Every Time
      • Reduces the Perception of Trigger Weight Still Further
    Standard Benefits
    • Semi-Auto Single-Stage
    • Crisp, Clean, Trigger Break
    • Very Short Over-Travel
    • Very, Positive Reset You Can Feel and Hear