Info:
Manufacturer/Model:
Made by Wingun for Umarex,
SA177
Replica Of: Glock 17C (9 mm)
Made In:
Taiwan
Caliber/Ammunition/Feed:
177, steel BBs, 16-shot magazine (will hold 19 BBs)
Air Source:
CO2, 12 g Powerlet
Accessories: none
Recommended Pellet or BB: RWS Match Grade BBs (5.4 gr)
Weight (lb)/Length (in):
1.47,
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): 380
Sound Level (dB): 101
Thickness of Pellet Holder (in):
N/A
Manufactured Dates: 2010 - present
Condition/Manual/Box: 98%, yes, yes (backer card)
Serial Number:
10B44769
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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)
Performance:
Measurements were made on
5/30/10 at a temperature of 78 ºF 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.

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