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quadrail

The Quadrail series is a sequence of five (as of 2012) science fiction novels by Hugo Award winning author Timothy Zahn.
In a space opera setting, human Frank Compton is hired by the Spiders, servant beings who operate the intergalactic Quadrail network, and their enigmatic masters the Chahwyn, to investigate a group-mind, the Modhri, which infiltrates other sentient beings and controls them either directly, or by subconscious suggestion. Together with Bayta, an enigmatic woman the Spiders have assigned to help him, he researches and combats the Modhri and later its controller, the Shonkla'raa.

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Recent contents
  1. Tht_guy_josh

    Wtb ar handguard

      1. Want to Buy
      2. Want to Trade For
    • salem
    • Oregon
    Looking to buy a 10.5 or 9.5 in handguard for an ar. Maybe a quad rail or old alg but Curious whats out there need something for a 11.5 build
  2. F

    WTS Colt M4 22 OPS Walther Umarex Quadrail NOS

      1. For Sale
    • $600
    • Canby
    • Oregon
    Colt M4 .22 LR OPS rifle. Walther/Umerex. NOS in box. I have never fired this rifle. Comes with four extra magazines not shown. They are unopened. I did install a new Magpul MOE butt. Original included. Has cheap red dot sight installed. They don't make these anymore. Local inspection in...
  3. PerPDX

    AR-15/M4 HANDGUARD/QUAD RAIL CARBINE LENGTH - Basically New in Box

      1. For Sale
    • $20
    • Portland
    • Oregon
    Hopefully you are interested in this item AR-15/M4 HANDGUARD/QUAD RAIL CARBINE LENGTH (6 1/2") $20 Never used. Like new. Still in the box it arrived. The box was opened just to see the item. Manufacturer's detailed info link...
  4. SpaghettiToss

    Daniel Defense OmegaX 7.0 discontinued quadrail handguard

      1. For Sale
    • $160
    • PORTLAND
    • Oregon
    As the title suggests, I am selling a Daniel Defense OmegaX 7.0 discontinued quadrail handguard. It is in great shape, and all the parts are there. Great part for cloners, and folks that love that retro look. $160 OBO
  5. C

    AR furniture

      1. For Sale
    • $15
    • Monmouth
    • Oregon
    PSA M4 fat carbine handguard set $15 plus ship PSA/CavArms chunky A2 handguard set $15 plus ship KAK/Delta Team Elite SOPMOD knockoff stock, no buffer tube assembly Sold for $10+ shipping. Rock River Arms Dominator 2 Eotech mount, used but great shape, 7 slots. QD mounts do not work on...
  6. thinsley

    Made in the USA - UTG PRO / Larue Tactical - Quadrail package

      1. For Sale
    • $50
    • Aurora
    • Oregon
    $50 UTG Pro midlength picatinny quadrail. This is the made-in-America stuff, not the cheap Chinese stuff. This handguard is solid! Has allen key screws that hold it super tight! Comes with a full 72 piece Larue Tactical Camo Index Clip set. These snap onto the picationny sections anywhere...
  7. AmanSlayman

    11.5" m&p upper Centurion Quadrail

      1. For Sale
    • $300
    • Sherwood
    • Oregon
    Rosco 11.5" 5.56 1/7 4150 CMV barrel No muzzle device M&p15 pistol upper reciever Centurion 9" quadrail $300
  8. deadlyhazo

    Original SIG 516 quad rail handguard

      1. For Sale
    • $175
    • milwaukie
    • Oregon
    Original SIG 516 quad rail handguard.
  9. RedneckRampage

    Quality Drop In Mid-Length Quadrail

      1. Want to Trade For
    • All
    • Oregon
    Looking for something like a DD Omega 9 drop in rail, needs to be quality and compatible with a delta ring. No MLOK OR KEYMOD, Picatinny only.
  10. Larsoc

    WTB 15” handguard with inner diameter over 40mm

      1. Want to Buy
      2. Want to Trade For
    • Portland
    • Oregon
    Looking for a 15” mlok or quadrail handguard with an inner diameter of over 40mm. Looking to tuck a keymo suppressor device.
  11. C

    Shooters Gate Midlength quadrail

      1. For Sale
    • $45
    • Monmouth
    • Oregon
    Cheese Grater 2pc "drop in" quadrail with no covers, comes with Allen key. Made of extruded aluminum and machined. Only tried to install onto a round handguard cap, no go. Fits only triangle handguard cap (not included). $45 FTF or $45+ shipping.
  12. jerhine23

    Bcm 16 inch upper on 12 inch qrf (quadrail) for sale or trade to eotech or aimpoint

      1. For Sale
      2. For Trade
    • $440
    • Milwuakie
    • Oregon
    Bcm 16 inch upper on 12 inch qrf (quadrail) for sale or trade to eotech or aimpoint Selling for $440 or trade to optics
  13. jerhine23

    Daniel defense 14.5 upper brand new with ris quadrail

      1. For Sale
      2. For Trade
    • $700
    • Milwaukie
    • Oregon
    Daniel defense 14.5 upper brand new with ris quadrail Its brand new, muzzle device wont come with it..selling for $700.. Added handstop from my b&t Trade interest: optics such as aimpoint or eotech.
  14. DameTime5

    Aero/BA 16” Upper and Aero/Odin 10.5” Upper

      1. For Sale
    • $475
    • Sandy
    • Oregon
    Aero/BA/MI 16” upper (12” rail) - never shot by me, catch and release from a buddy. Barrel is a 16” BA, not sure what profile. The HLX is brand new and never been taken outside. Comes with everything including the Eotech 512. Looking to get $830 shipped. Aero/Odin/Rosco/MI 10.5” upper - seen...
  15. DameTime5

    Ballistic Advantage/Griffin Armament AR 16”

      1. For Sale
    • $1100
    • Sandy
    • Oregon
    Bought the upper from a buddy who shot 60 rounds out of it. Put it on an extra lower I had but don’t want or need it. B5 Stock (NEW) Aero Precision buffer tube assembly Griffin Armament MK1 lower Aero Precision LPK MFT Grip Aero Precision upper receiver Odin Works BCG Milspec CH Ballistic...
  16. DameTime5

    Ballistic Advantage 16” Upper (With Eotech and Streamlight)

      1. For Sale
    • $875
    • Sandy
    • Oregon
    Bought this from a friend, only 2 mags through it. I’ve never shot it. Aero Upper Midwest Industries Quadrail Ballistic Advantage 16” Barrel Ballistic Advantage gas block and tube Odin Works BCG Milspec CH Streamlight HL-X (NEW) Magpul RVG (NEW) Eotech 512 Looking for $875, will ship on...
  17. Zingularity

    FB Radom Mini Beryl Quad Rail - NOS

      1. For Sale
      2. For Trade
    • $530
    • Vancouver
    • Washington
    Very rare FB Radom Mini Beryl quad rail, NOS. Mil-spec finish. Has a few wear marks from storage, as shown. Will consider trades for 7.62x39 ammo.
  18. pewpewclint

    11.5 uppper, midwest quadrail, magpul parts

      1. For Sale
    • $200
    • Albany
    • Oregon
    I have an 11.5 inch PSA 5.56 upper with a Midwest Industries quadrail, Magpul vertical grip, Daniel Defense rail covers, and UTG fixed rear sight. No BCG, no CH or flash hider. $200 Magpul MOE+ carbine length handgaurd with Magpul MOE+ vertical grip and Magpul rail section. $30
  19. Hines11b3x

    mk12 handguard

      1. Want to Buy
      2. Want to Trade For
    • Keizer
    • Oregon
    Looking for mk12 style AR15 , free float Handguard. PRI, KAC RAS, DDRIS,Larue, BCM Quad rail. 12-13.5” I can pay cash or trade for other AR/gun parts and gear
  20. Chris12612

    Midwest Industries 10” Combat Quadrail

      1. For Sale
    • $150
    • Estacada
    • Oregon
    Midwest Industries Free Float Combat Quadrail. Hardly used, includes barrel nut and wrench. $150
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