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Best-Selling Firearm Parts

(📦 864 products available)

Shop best-selling firearm parts and accessories at HR Tactical Innovations. Compare popular AR-platform components, grips, stocks, controls, optics, tools, and compatible upgrades ranked by store sales.

Popularity does not guarantee compatibility. Confirm firearm platform, caliber, dimensions, fitment, manufacturer specifications, and all applicable laws before ordering or installation.

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  • Pinty Nova 1x20mm 2MOA Red Dot Sight Pinty Nova 1x20mm 2MOA Red Dot Sight
    📦 Ships Direct
    50% off

    Pinty Scopes

    Pinty Nova 1x20mm 2MOA Red Dot Sight

    20 available
    $24.99 USD $49.99
    View details
  • 3-In-1 Tactical Foregrip with Flash Light & Laser 3-In-1 Tactical Foregrip with Flash Light & Laser in Red, alternate view 2
    📦 Ships Direct
    Up to 6% off

    Pinty Scopes

    3-In-1 Tactical Foregrip with Flash Light & Laser

    🎨 2 colors available

    $74.99 USD $79.99
    View details
  • USMC FSBE Slung Weapon Belt Catch - 2 Pack USMC FSBE Slung Weapon Belt Catch - 2 Pack, alternate view 2
    📦 Ships Direct

    McGuire Army Navy

    USMC FSBE Slung Weapon Belt Catch— 2 Pack

    797 available
    $29.99 USD
    View details
  • Scout Scrim Optic Cover (S.S.O.C.) in Woodland Scout Scrim Optic Cover (S.S.O.C.) in Italian Veg, alternate view 2
    📦 Ships Direct

    Arid Manufacturing

    Scout Scrim Optic Cover (S.S.O.C.)

    $19.95 USD
    View details
  • Rail System Overwrap Camo (R.S.O.C.) Rail System Overwrap Camo (R.S.O.C.)
    📦 Ships Direct

    Arid Manufacturing

    Rail System Overwrap Camo (R.S.O.C.)

    $24.95 USD
    View details
  • Primary Arms SLx 30mm Cantilever Scope Mount - 1.5 Inch Primary Arms SLx 30mm Cantilever Scope Mount - 1.5 Inch, alternate view 2

    Primary Arms

    Primary Arms SLx 30mm Cantilever Scope Mount - 1.5 Inch

    Very low stock (1 available)
    $120.99 USD
    View details
  • Primary Arms PLx 30mm Cantilever Scope Mount - 1.5 Inch Primary Arms PLx 30mm Cantilever Scope Mount - 1.5 Inch, alternate view 2
    Sold out

    Primary Arms

    Primary Arms PLx 30mm Cantilever Scope Mount - 1.5 Inch

    $279.99 USD
    View details
  • Primary Arms SLx Offset Reflex Mount for GLOCK MOS Pattern Optics Primary Arms SLx Offset Reflex Mount for GLOCK MOS Pattern Optics, alternate view 2

    Primary Arms

    Primary Arms SLx Offset Reflex Mount for GLOCK MOS Pattern Optics

    Very low stock (1 available)
    $32.99 USD
    View details
  • Luth-AR MBA-5 Adjustable Stock - Mil-Spec Buffer Tube Luth-AR MBA-5 Adjustable Stock - Mil-Spec Buffer Tube, alternate view 2

    Luth-AR

    Luth-AR MBA-5 Adjustable Stock - Mil-Spec Buffer Tube

    Very low stock (1 available)
    $62.99 USD
    View details
  • Holosun DRS-NV Digital Night Vision Red Dot Sight in black

    Holosun

    Holosun DRS-NV Digital Night Vision Red Dot Sight

    On demand
    $799.99 USD
    View details
  • NcStar Precision Grade Harris Style Compact Sling Mount Bipod NcStar Precision Grade Harris Style Compact Sling Mount Bipod — alternate view 2

    NcSTAR

    NcSTAR Precision Grade Harris-Style Compact Bipod

    On demand
    $45.99 USD
    View details
  • AT3 ARO-MINI™ 3 MOA Red Dot Reflex Sight for Subcompact Pistols (RMS/RMSC Footprint) – Red

    AT3 Tactical

    AT3 ARO-MINI 3 MOA Red Dot Reflex Sight

    From $149.99 USD
    View details
  • Holosun HS510C Red Dot Riser Holosun HS510C Red Dot Riser — alternate view 2

    Holosun

    Holosun HS510C Lower 1/3 Co-Witness Riser Mount

    On demand
    $21.99 USD
    View details
  • Mercury Precision 15" M-LOK Free Float AR-15 Handguard, Full Picatinny Top Rail Mercury Precision 15" M-LOK Free Float AR-15 Handguard, Full Picatinny Top Rail — alternate view 2
    Sold out

    Mercury Precision

    Mercury Precision 15" M-LOK Free Float AR-15 Handguard

    $65.99 USD
    View details
  • Sig Sauer Sig Air Reflex Sight Sig Sauer Sig Air Reflex Sight — alternate view 2
    Sold out

    Sig Sauer

    SIG Sauer SIG AIR Reflex Sight

    $69.99 USD
    View details
  • Holosun HE515GT-RD red Multi-Reticle titanium rifle sight
    Sold out

    Holosun

    Holosun HE515GT-RD Red Multi-Reticle Titanium Sight

    $399.99 USD
    View details
  • Holosun HE515CT-GR green Multi-Reticle solar titanium sight
    Sold out

    Holosun

    Holosun HE515CT-GR Green Multi-Reticle Solar Titanium Sight

    $459.99 USD
    View details
  • MD-RBGII Classic Series Gen II Removable Microdot Red Dot Sight MD-RBGII Classic Series Gen II Removable Microdot Red Dot Sight — alternate view 2
    Sold out

    Primary Arms

    Primary Arms MD-RBGII Classic Series Gen II Removable Microdot Red Dot Sight

    $89.99 USD
    View details
  • Classic Series 25mm Push Button Red Dot Sight - 3 MOA Dot Classic Series 25mm Push Button Red Dot Sight - 3 MOA Dot — alternate view 2
    Sold out

    Primary Arms

    Primary Arms Classic Series 25mm Push Button Red Dot Sight - 3 MOA

    $129.99 USD
    View details
  • SLx Advanced Rotary Knob Microdot Red Dot Sight SLx Advanced Rotary Knob Microdot Red Dot Sight — alternate view 2
    Sold out

    Primary Arms

    Primary Arms SLx Advanced Rotary Knob Microdot Red Dot Sight

    $129.99 USD
    View details
  • HS403R 2 MOA Micro Red Dot Sight
    Sold out

    Holosun

    Holosun HS403R 2 MOA Micro Red Dot Sight

    $210.99 USD
    View details
  • HE403R-GD 2 MOA Micro Gold Dot Sight

    Holosun

    Holosun HE403R-GD 2 MOA Micro Gold Dot Sight

    Very low stock (1 available)
    $229.99 USD
    View details
  • HS503R 2 MOA Micro Red Dot Sight - 65 MOA Circle
    Sold out

    Holosun

    Holosun HS503R Micro Red Dot Sight - 65 MOA Circle

    $299.99 USD
    View details
  • HE403C-GR Elite Paralow Solar Powered 2 MOA Green Dot Sight HE403C-GR Elite Paralow Solar Powered 2 MOA Green Dot Sight — alternate view 2
    Sold out

    Holosun

    Holosun HE403C-GR Elite Paralow Solar 2 MOA Green Dot Sight

    $264.69 USD
    View details

Best-Selling Firearm Parts & Accessories

Popular firearm parts, AR components, controls, optics, tools, and compatible accessories ranked by sales.

Use this collection to compare best-selling products specifically classified as Firearm Parts. Shopify ranks eligible components, controls, grips, stocks, optics, tools, and compatible accessories by store sales.

Sales rank can help identify popular options, but it does not confirm fitment. Review the product page and manufacturer specifications before ordering or installation.

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