Umarex SA177


Glock 17C (9 mm)

Made by Wingun for Umarex, SA177
Replica Of:
Glock 17C (9 mm)
Made In:
177, steel BBs, 16-shot magazine (will hold 19 BBs)
Air Source: CO2, 12 g Powerlet
Recommended Pellet or BB:
RWS Match Grade BBs (5.4 gr)
Weight (lb)/Length (in):
, 7.6
Body Material/Finish/Grips:
metal (slide)/polymer (frame), black, polymer
Barrel Length (in)/Material/Rifled:
4.1, steel, no
Trigger Action:
DA only
Trigger Pull (lbs)/Adjustable:
8.5 (DA), no
Sights (front/rear):
fixed, fixed
Velocity (fps):
Sound Level (dB): 101
Thickness of Pellet Holder (in): N/A
Manufactured Dates:
2010 - present
98%, yes, yes (backer card)
Serial Number:

Comments: The Umarex SA177 is made in Taiwan by Wingun for Umarex. It is styled after the popular Glock 17C and sports a metal slide and polymer frame. The SA177 has the heft and feel of the Glock firearm and has the controls for magazine release and slide stop in the same place as on the firearm. It even has the middle trigger blade simulating the Glock "Safe Action" trigger. Unfortunately, the blade on the SA177 is only cosmetic and is not part of the safety mechanism on the airgun. The SA177 uses some of the CO2 from each shot to operate its blowback function. The blowback action, which is weak and slow, is only for effect and does not recock the gun or serve any other function in cycling the action. The slide locks back after the last BB has been fired. The firing mechanism is a moving barrel design in which the barrel, under spring tension, slams back against the valve to release gas for each shot. The trigger on the SA177 is double-action only, which means that all the work of cycling the gun for every shot is loaded into the trigger pull. The pull is only moderately heavy for a double-action BB gun. The trigger pull is fairly rough, but this is not as noticeable when firing the gun rapidly. It should be noted that if the safety is disengaged, pulling the trigger will fire a BB regardless of the position of the slide -- even if the slide is locked back.

To load the SA177 with a CO2 cartridge, open the CO2 compartment by pressing the button located on the bottom of the grip. This flips up the backstrap and exposes the CO2 compartment. Remove the magazine from the gun to uncover the piercing screw. The tab on the piercing screw is small, making it difficult to properly pierce CO2 cylinders. Loading BBs is a straightforward process aided by the fact that the magazine has a locking position for the spring-loaded follower. Be sure to release the follower after filling the magazine. Umarex states that the magazine capacity is 16 BBs, but it will easily hold 19. If the magazine is removed before it is empty, a BB is left behind in the gun. Be sure to shake this out to avoid jams when reinserting the magazine.

The SA177 has above average power and average accuracy for a CO2-powered BB pistol with a smooth bore. Approximately 60 to 70 good shots can be expected from a CO2 cylinder depending on how rapidly the gun is fired (rapid firing reduces the number of useful shots). Although the SA177 has the look and general feel of a Glock pistol, Glock enthusiasts will be disappointed that Umarex did not go the extra measure to design this gun as a true semi-auto. As it is, the double-action trigger, sluggish slide action, and middle-of-the-road performance will limit the appeal of the SA177 for those looking for an air pistol for firearms training. However, the SA177 is a decent airgun for general plinking.

Pyramyd Air Report on the Umarex SA177 (Part 1)
Pyramyd Air Report on the Umarex SA177 (Part 2)
Pyramyd Air Report on the Umarex SA177 (Part 3)

Measurements were made on 5/30/10 at a temperature of 78 F and 14' elevation. A ten shot string was fired from a bench rest at 15' using RWS Match Grade BBs (5.4 gr). The highest velocity measured was 427 fps, the lowest was 395 fps (average of the 10-shot string was 420 fps, s = 10). A six shot string fired with open sights grouped at 0.79". Click the thumbnail below to see a larger image. Click here for a description of the measurement methods.

A 10-shot rapid fire group (8 seconds) shot off hand with open sights from 15' measured 1.42".

Four different brands of BBs were tested with the SA177. The targets below show the results for firing six-shot groups from 15' using a bench and open sights with Crosman Copperhead BBs, Daisy Avanti BBs, Daisy Precision Max BBs, and RWS Match Grade BBs.


Right Profile:

Front View: A tactical rail for attaching accessories is located under the barrel.

Left Profile 2: The front and rear sights on the SA177 are not adjustable and include fiber optic inserts.



Left Profile 3: The blowback function of the SA177 is just for effect. It does not recock the gun or serve any other purpose in recycling the gun's action. The blowback effect is very weak and not very realistic. The slide locks back after the last BB has been fired. When the slide is locked back, the trigger can still be pulled to fire the gun.

Right Side Markings: The safety is located on the right side of the gun. It must be depressed and then pushed to the front or rear to engage or disengage. This is the same style of safety used on most Wingun models and is not particularly easy to operate, especially with one hand.


Left Side Markings: The middle blade on the SA177 trigger looks like the Glock "Safe Action" trigger. However, the blade serves no useful purpose and is a purely cosmetic device. The trigger on the SA177 is double-action only (DAO).

Loading BBs: The SA177 uses a removable 16-shot magazine. The spring-loaded follower in the magazine has a locking position, which makes the magazine easier to load.

The magazine is similar in design (except for the base plate) to the magazines used in other Wingun models and shares the problem of leaving a BB loose in the gun if the magazine is removed before it is empty.

Loading CO2: The CO2 compartment in the SA177 is located in the grip. The compartment is accessed by pressing a button located at the base of the grip. Pressing the button causes the spring-loaded backstrap to swing up. The cylinder piercing screw is located at the base of the grip and is provided with a swivel tab. The tab on the piercing screw is small and does not provide sufficient leverage to reliably pierce CO2 cylinders. The piercing screw is covered by the baseplate of the magazine when the magazine is inserted providing a smooth and realistic appearance.







 Copyright 2011