Buy and Earn 55 Bullseye Bucks!
What are Bullseye Bucks - Pyramyd Air

Crosman M4-177 Multi-Pump Air Rifle, Adj. Stock

Crosman M4-177 Multi-Pump Air Rifle, Adj. Stock

Click for larger image and other views

Action kit
0.177" (4.5mm)
Action kit
0.177" (4.5mm)

0.177" (4.5mm), 660.0 fps, Synthetic, Ambi, Black
3-10 pumps, 18-rd BB mag & 5-rd pellet mag
660 fps/BBs, 625 fps/pellets (velocities in owner's manual are incorrect)

FREE USA Ground Shipping
Continental USA. Orders $150+.
Cannot be combined with coupons. Details

1-year limited warranty

SKU PY-2631-5208


List Price $99.99

Pyramyd Air 30 day money back
Estimate Shipping
Zip Code:

Estimated in-stock date 04-30-15
Place your order now for delivery priority!

Click to get email when it's in stock!

Add to Compare
Add to Wishlist
  • Description
  • Specifications
  • Customer reviews
  • Q & A: 5 answered questions
  • feature icon2012 Best Seller
  • feature icon2011 Best Seller
  • feature iconBuilt & made in the USA with globally sourced products
  • Multi-pump pneumatic
  • 3-10 pumps (never exceed 10 pumps)
  • Bolt-action
  • 18-rd BB mag, 5-rd pellet mag
  • 350-rd BB reservoir
  • Aperture rear sight adjustable for windage
  • Post front sight adjustable for elevation
  • Both sights are removable
  • Weaver/Picatinny optics rails above the receiver, below the front sight fitting and on the underside of the forearm
  • Adjustable/telescoping stock (30.5" to 33.75")
  • Sling loops
  • Manual safety
  • Includes sight adjustment tool
  • 660 fps with steel BBs and 625 fps with pellets (velocities in the owner's manual are incorrect)

Looks and feels like an M4 firearm. Shoots either BBs or pellets, so you can use whatever ammo you've got on hand. Since it's a multi-pump, you can pump it up to 10 times to get higher velocities or less if you'd like to do some easy all-day shooting.

Get extra clips (same ones used by the Crosman 760 Pumpmaster) and load up so you don't have to interrupt your range time with a lot of reloading.

When you shoot steel BBs, do not shoot at hard objects or water. The BBs will ricochet! No matter what ammo you're using, remember to wear safety glasses. Everyone in the vicinity of the range should wear safety glasses, even if they're not shooting. Remember to remove all pets from the range before you start shooting.
  • youTube video
See manual

other products by Crosman

0.177" (4.5mm)
660 fpsMeasured with 5.1-gr. ammo
3-10 pumps
Adjustable for elevation
Adjustable for windage
4.0 lbs
Multi-pump pneumatic
Metal/ABS plastic
3.75 lbs
See manual

other products by Crosman

Create an online reviewand share your thoughts with other customers

Overall rating:5.0 5.0

Value for money:5.0 5.0

Accuracy:5.0 5.0

  By Virgil from USA on 2015-04-16
See all my reviews
 Was this review helpful?
0.00 ratings
Things I liked:This is a replica gun that you can actually shoot in your back yard. It is amazingly accurate for me at 25 feet I can keep a group dime sized with 4 pumps. Simple to operate and you can get a lot of practice for pennies. Great Marksmanship trainer for 10 and up...
Things I would have changed:I have ordered a carry handle with rear sight to see how it works and it would be a good idea to have the accessory offered for this gun.
What others should know:Be safe shoot straight

Overall rating:3.0 3.0

Value for money:3.0 3.0

Accuracy:3.0 3.0

  By Arpad from USA on 2014-12-22
See all my reviews
 Was this review helpful?
0.00 ratings
Things I liked:The ergonomics of the gun are fantastic. Size, weight, Picatinny rail for sights and the sights themselves are neat. (Yes, lots of plastic but that's OK). Accuracy with pellets is good.
Things I would have changed:Accuracy with bbs is not good. Also, the bb gravity feed system is sometimes troublesome, it needs to have the muzzle pointed down to load but even so, I have had a few failures to feed a bb into the chamber. The location and configuration of the bb feed opening is troublesome, and can result in spilled bbs. Perhaps a small indentation here would help. BB accuracy definitely needs to be improved, see below.
What others should know:The reviews on this gun are generally very good, many praise its accuracy. I think these folks are using pellets. If you are looking for a gun that performs well with both bbs and pellets, this is not the one. We use our guns for back yard target practice and plinking so we often use bbs when shooting soda cans and informal targets. Our Red Rider and the Umarex NXG give far tighter bb groups (and yes, we used the copper coated crosman bbs with the M4-177 as recommended by Crosman, the results were still terrible). Supported, at 30 ft the RR and NXG can yield bb impact circles about 2-2.5 inch in diameter, with the NXG generally tighter. The M4-177 under identical conditions yielded impact circles of about 6-8 inches, (shot groups of 5 to 10). With pellets the M4-177 did as well as the NXG. For all around performance with bbs and pellets, my vote is for the NXG. Because of its ergonomics, with better bb accuracy the M4 would be a serious competitor.

Overall rating:3.0 3.0

Value for money:4.0 4.0

Accuracy:5.0 5.0

  By MrHunter from USA on 2014-10-26
See all my reviews
 Was this review helpful?
0.00 ratings
Things I liked:accuracy is good
Things I would have changed:trigger
What others should know:you can't put anything on the under rail on the barrel because it would get in the way of the pump.
Show Other ReviewsCreate an online review and share your thoughts with other customers
  • Dima from USA asked:

    Hello. is gun in good condition and is gun full metal ?

    • Dan the Man from USA:

      The refurbished models may have some scratches, dings and nicks on them, but they are guaranteed to work. No, it has a lot of plastic.

  • jack from Australia asked:

    how many shots do you get from 10 pumps

    • Dan the Man from USA:


  • Falerino from USA asked:

    Can I buy this gun send to Indonesia?

    • Erika from USA:

      You would need to check with your Customs agency to see if you can import

See all discussions »

Item DescriptionCaliberMax VelocityMuzzle EnergyItemCodeStockGripColor
3-10 pumps, 18-rd BB mag & 5-rd pellet mag
660 fps/BBs, 625 fps/pellets (velocities in owner's manual are incorrect)
0.177" (4.5mm)660 fpsMeasured with 5.1-gr. ammo4.93 ft/lbsMeasured with 5.1-gr. ammoCR-M417 [PY-2631-5208]SyntheticAmbiBlack


This product is out of stock.
Estimated in-stock date 04-30-2015.
Place your order now for delivery priority!

Recommended Accessories / Ammo

Service Plans

10-for-$10 Test!

10-for-$10 Test!

Add to cart

Model Assistant Crosman M4-177 Multi-Pump Air Rifle, Adj. Stock

Compatible with Crosman M4-177 Multi-Pump Air Rifle, Adj. Stock

Shop at Gun Mall
Shopping Cart Items

    CheckoutSubtotal (USD):
    does not include shipping and tax

    Back to Top