Sporting Systems
Oregon Rifleworks
J&B Firearm Sales
Bear Creek Arsenal
HighLine Firearms
Southwest Firearms
JavaScript is disabled
Our website requires JavaScript to function properly. For a better experience, please enable JavaScript in your browser settings before proceeding.

  • Join the #1 community for gun owners of the Northwest

    We believe the 2nd Amendment is best defended through grass-roots organization, education, and advocacy centered around individual gun owners. It is our mission to encourage, organize, and support these efforts throughout Oregon, Washington, Idaho, Montana, and Wyoming.

    Free Membership Benefits

    • Fewer banner ads
    • Buy, sell, and trade in our classified section
    • Discuss firearms and all aspects of firearm ownership
    • Join others in organizing against anti-gun legislation
    • Find nearby gun shops, ranges, training, and other resources
    • Discover free outdoor shooting areas
    • Stay up to date on firearm-related events
    • Share photos and video with other members
    • ...and much more!

4" barrel

The M4 Carbine is a shorter and lighter variant of the M16A2 assault rifle. The M4 is a 5.56×45mm NATO, air-cooled, gas-operated, direct impingement, magazine-fed carbine. It has a 14.5 in (370 mm) barrel and a telescoping stock.
The M4 is extensively used by the United States Armed Forces and is largely replacing the M16 rifle in United States Army and United States Marine Corps combat units as the primary infantry weapon and service rifle.
The carbine is also capable of mounting the M203 and M320 grenade launchers. The distinctive step in its barrel is for mounting the M203 with the standard hardware. The M4 has semi-automatic and three-round burst firing modes (like the M16A2 and M16A4), while the M4A1 has semi-automatic and fully automatic firing modes (like the M16A1 and M16A3).

View More On Wikipedia.org
Recent contents
  1. B

    New Colt Python 357 magnum with 4" barrel , wood grips

      1. For Sale
    • $1100
    • Milwaukie
    • Oregon
    Never fired 4.25" barrel Target sights Wood grip Beautiful New in box
  2. G

    Smith & Wesson Model 15-1 .38 cal revolver 4" barrel SOLD

      1. For Sale
    • $525
    • Beaverton
    • Oregon
    This revolver is offered at $515.00 cash, no trades. This model was made from 1949 to 1999 The dash 1 engineering change was only in effect for 2 years and is not often seen. This is a very good shooter grade quality gun. The bore is bright and shiny, timing and lock up are good It has the...
  3. Jeromepinoy

    Walther PDP 4” Compact WTS/WTT

      1. For Sale
      2. For Trade
    • $450
    • Hillsboro
    • Oregon
    Selling a barely used Walther PDP comes with 4 15 rounder mags and number one optic plate for your optic. For sale or trade let me know what you got? Worst I can say is no thanks!
  4. arakboss

    Looking For A Cheap XD 40 Pistol With 4" Barrel.

      1. Want to Buy
    • Wilsonville
    • Oregon
    I want to buy a XD 40 pistol. I am looking for the service size model with 4 inch barrel but might consider a subcompact model as a last resort. Transfer would have to occur at Tigard Pawn 4 More in Tigard, OR. PM me if you have one you want to sell.
  5. Maximum Magnum

    🔥🎯 Steyr Arms M9-A2 9MM Semi-Automatic Pistol, 4" Barrel, Polymer Frame, Two 17Rd Mags🎯🔥

      1. For Sale
    • $320
    • Beaverton
    • Oregon
    Like-new condition. The Steyr M9-A2 is a massively underrated gun! Super low bore axis and cool triangular sights. Selling due to medical bills, not because I don’t absolutely love the gun. I'm including the pistol and the original box. Must be willing to meet me at A Cut Above Pawn in Aloha/...
  6. R

    Astra NC-6 Revolver 4" Barrel .38Spl, Surplus Good Condition

      1. For Sale
    • $280
    • PORTLAND
    • Oregon
    Selling a surplus Astra NC-6 chambered in .38 special. Single/double action, Smith & Wesson style release, see pictures for finish condition. Functions perfectly. For more information, https://www.classicfirearms.com/astra-nc6-revolver-38spl-6-shot/
  7. pinoyboyazn

    Smith and Wesson 629-6 44 Magnum, 4" Barrel Stainless Steel (will sell in PDX also)

      1. For Sale
      2. For Trade
    • $900
    • Puyallup
    • Washington
    Selling a used Smith and Wesson 629-6 in 44 Magnum. Round count on this revolver is very low. Revolver was carried by a hunting/fishing guide in Alaska; shows some wear consistent with carry, but has no major scratches, blemishes, rust or pitting. Selling because it's taking up space in my safe...
  8. Tomato seed

    Rock Island M200 38special

      1. For Sale
      2. For Trade
    • $225
    • Estacada
    • Oregon
    Rock Island 4" 38 special . Black six shot 38 special. 225 obo you pay transfer. Gun, box, lock and papers. Can deliver to your FFL.
  9. Lawman

    S&W 686 Revolver .357, 4" barrel NEW

      1. For Sale
    • $800
    • LINCOLN CITY
    • Oregon
    New Smith and Wesson Model 686, 4" barrel, 357 Magnum, in box with all paperwork. $800 Cash FTF Come to Lincoln City, I will your pay your background check. I can usually have BG check completed in about 30 minutes (conditions apply) or within 24 hours. Willing to meet you at your FFL within 75...
  10. chefbq

    S&W model 28-2 Highway Patrolman 357 magnum 4" barrel

      1. For Sale
    • $895
    • GLADSTONE
    • Oregon
    The big N-Frame for this .357 magnum. 4" Barrel, Target sights, Target grips. Trigger breaks like a skinny glass rod. Slight wear at muzzle from a holster. Bore is bright and clean, case-colored hammer and trigger. Buyer pays transfer fees.
  11. gregfisher

    Walther PDP-F, 4" Barrel, Night Fusion Sights (Reduced Price)

      1. For Sale
    • $600
    • HILLSBORO
    • Oregon
    Walther PDP-F, (Performance Duty Pistol) 4 inch barrel, comes with two 15 round magazines, box, papers and original sights. Comes with both the factory sights and a set of Night Vision Night Sights (pictured)($90.75). Purchased March 2023. Advanced ergonomics regarding reduced grip...
  12. Zoolander

    Springfield XD9 Defender 4" barrel

      1. For Sale
    • $380
    • Tigard
    • Oregon
    Selling for a friend. It's unfired and comes with one 16 round magazine while the state says so. $380 Partial trades - 10/22 trigger (BX-25 trigger or aftermarket) TacSol matte black fluted 10/22 barrel
  13. 1BoredGuy

    *Sold* Ruger GP100, 357 magnum, stainless, 4" barrel, classic grips, with speed loaders and holster

      1. For Sale
    • $675
    • Renton
    • Washington
    **Sold** WTS: Ruger GP100, 357 magnum, stainless, 4" barrel Classic grips. Adjustable rear sight. Price includes 2 of HKS speedloaders 1 Simply Rugged "Sourdough pancake" holster (both OWB or IWB, very clean good condition, oxblood with border stamping), might have worn twice. Lock if needed...
  14. jessygirl20150

    NIB S&W Model 29, .44mag, 4" barrel w/ ammo, owb and 4 speedloaders.

      1. For Sale
      2. For Trade
    • $1399
    • Wilsonville
    • Oregon
    New S&W Model 29, .44mag, 4" barrel with: - leather OWB holster. - 60+ rounds of .44mag in: HP, FMJ. and Soft tip. - 4 x speedloaders and holster. - Original box and paperwork. $1399 Trades: - Firearms: - BRN180 10.5" upper in 223 wylde. - Henry Big Boy X black in .44 or .357 - Ruger American...
  15. BVB

    WTB: Ruger GP 100 4” barrel Found

      1. Want to Buy
    • Portland
    • Oregon
    FOUND
  16. SDR

    Stainless 10mm, S&W 610-6, 4"

      1. For Sale
      2. For Trade
    • $875
    • Canby
    • Oregon
    Nice clean S&W DA/SA revolver in 10mm ... Box and all the typical stuff in the box included... Picture angle doesn't show lock, being a -6 lock is present... Trade, Part, trade interests that I can think of... 45-70 premium only manufacturer 250 to 325 Grn... 10mm Premium only manufacturer...
  17. Blasfimus

    Smith & Wesson Model 10 4" Barrel

      1. Want to Buy
    • Fairview
    • Oregon
    Looking for a classic style model 10, preferably a 10-5 or 10-7 Short 4" tapered barrel is the only only variant I'm interested in Thanks for looking! :)
  18. BigPoppa82

    Springfield Armory 1911 EMP Champion 40 4"

      1. Want to Buy
      2. Want to Trade For
    • Centralia
    • Washington
    Looking for a 4" in great or new condition. Springfield Armory 1911 EMP Champion 40 Cash in hand. Thanks.
  19. 619soldier

    S&W 581 4" barrel nickle

      1. For Sale
    • $1000
    • Coeur d'Alene
    • Idaho
    Highly sought after excellent condition S&W 581 4" barrel nickle "distinguished service magnum". No longer have the box, but pistol is in excellent condition. Can throw in a bag of .357 rounds Not willing to ship, meet in Spokane/CDA area. Not interested in any trades, cash only
  20. S

    Ruger GP100 7 shot 4" barrel N.I.B

      1. For Sale
      2. For Trade
    • $900
    • Portland
    • Oregon
    Looking to trade my New in box Ruger GP100 7 shot with 4 inch barrel. Bought it new over the summer with intentions of it being my camping revolver but it ended up sitting in the closet. It has original wood grips as well. May have some ammo too depending on transaction. Looking to trade it...
Bear Creek Arsenal
Southwest Firearms Forum
Copeland Custom Gunworks
Tigard Pawn 4 More
Sporting Systems
Cerberus Training Group
Back Top