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ERGO MOSSBERG 500/590 & SHOCKWAVE 12/20 GAUGE SHOTGUN ADAPTER

$30.99
Use the ERGO Adaptor to install an AR stock/brace & pistol grips on your Mossberg 500/590 shotguns. Accommodates mil spec or commercial buffer tubes. ALL NFA RULES APPLY Compatible with both 590 Models & Shockwave. Need replacement hardware? Click here for ERGO Mossberg Hardware Packs For best installation, we suggest using the 3/16 Wrench

ERGO MOSSBERG 500/590 .410-GAUGE SHOTGUN ADAPTER

$30.99
Use the ERGO .410 GA Shotgun Adapter to install an AR stock & pistol grip on your Mossberg 500/590 or brace & pistol grip on your SHOCKWAVE.  Accommodates mil spec or commercial buffer tubes. ALL NFA RULES APPLY Need replacement hardware? Click here for ERGO Mossberg Hardware Packs For best installation, we suggest using the 3/16 Wrench

ERGO MOSSBERG 12-GAUGE 500/590 RAIL (SHOCKWAVE)

$74.99
  • M-LOK® compatible forend for 12-Gauge Mossberg 500/590
  • M-LOK® style rails at 3, 6, and 9 o'clock
  • Extremely lightweight and low profile.
  • Hard Black type III anodized 6061-T6 Aluminum
  • Comes complete with 3 black 4332 M-LOK® Compatible Rail Covers
DETERMINE YOUR SIZE

ERGO MOSSBERG 12-GAUGE 500/590 TRI-RAIL FOREND

$59.99$80.75
ERGO Three Rail Shotgun Forend provides 12-Gauge Mossberg 500/590 shooters with a tri-rail mounting platform for their forend. DETERMINE YOUR SIZE

ERGO DOUBLE SLING LOOP SHOTGUN END PLATE, MOSSBERG 500/590

$25.99
The ERGO Double Sling Loop Shotgun End Plate provides Mossberg 500/590 shooters with an ambidextrous sling point. If used with a pistol grip stock a longer screw may be needed.

Mossberg Replacement Hardware Pack

$2.99
The Mossberg hardware pack includes replacement screws and washers.
Inlcudes:
  • 5/16"-18 x 1" Stainless Receiver Screw
  • 1/4"-20 x 1" Black Oxide Grip Screw
  • 5/16" Split Lock Washer
  • 1/4" External Tooth Lock Washer
Replacement hardware for ERGO Stock Adapters:

ERGO MOSSBERG 500/590 11-SLOT PICATINNY OPTIC RAIL MOUNT

$29.99
Standard M1913 Picatinny Rail configuration with anodized flat black made of  6061 T6 anodized aluminum to be light-weight, long-lasting, and durable. For best installation, we suggest using the 3/32 Wrench

ERGO KEYMOD MOSSBERG 12-GAUGE RAIL

$74.50
  • Keymod forend for 12-Gauge Mossberg 500.
  • Keymod rails at 3, 6, and 9 o'clock
  • Extremely lightweight and low profile.
  • Hard Black type III anodized 6061-T6 Aluminum