Top Value Guns

Tim Fin­ley en­joys a jaunt with the Cros­man MTR77NP

Airgun World - - Contents -

Tim Fin­ley gets excited about the MTR77NP - a break-bar­rel from Cros­man

Aproper treat for mil­i­tary-style air­gun fans – an air ri­fle that not only looks like the clas­sic M16A4 from the Viet­nam war era, but it also be­haves like a break-bar­rel air ri­fle. When I first saw the Cros­man MTR77NP, I as­sumed it was just an­other CO2-pow­ered ri­fle, but as a fan of the break-bar­rel for­mat, this is an ex­cit­ing gun.

The 375mm-long bar­rel hinges in a wide-ribbed fore end and there is a rec­tan­gu­lar aper­ture cut out of the top of the hand guard, for plac­ing a lead pel­let into the breech. The gun has a man­ual safety catch and I would put the safety on be­fore cock­ing and load­ing the ri­fle. The curved catch is di­rectly in front of the trig­ger blade within the trig­ger guard and when in the rear­ward ‘safe’ po­si­tion it al­most rests on the trig­ger it­self. Push it for­ward off the trig­ger and you are ready to fire – once cocked and loaded, of course. It is not au­to­matic, but has an anti-bear trap de­vice on cock­ing. The trig­ger is okay, with a let-off weight of 1.66kg, which is bet­ter than I was ex­pect­ing.

GOOD POWER PLANT

The stock is mod­elled upon the A2 stock fit­ted to the orig­i­nal M16A4, and it’s the ex­act same length, too – 266mm (10½ inches). It is fixed, with a pull length of 340mm (13½ inches) – again, the same as an orig­i­nal one, and the over­all length is the same to the milime­tre.

The gun is am­bidex­trous. The pis­tol grip has a fin­ger groove and deep grip pan­els and you can fit a sling as on the orig­i­nal M16A4; the rear loop is in the A2 rear stock, but the front loop clev­erly swings down from the bar­rel. The mag­a­zine re­lease but­ton is in the same place as the real gun, and drops a faux 10-round mag’ that dou­bles as a small stor­age com­part­ment. All other con­trols are just solid mould­ings; the ejec­tion port cover, the bolt re­lease, safety catch and cock­ing lever are all false.

The heart of any air ri­fle is the power plant and the MTR77NP not only looks good but also has a very good, nitro-pis­ton power plant. It might be a break-bar­reled air ri­fle, but it uses a gas-ram rather than a coiled metal, spring for power. The in­ert gas they use is ni­tro­gen or ‘nitro’, as Cros­man call it. The ‘NP’ suf­fix after MTR77 stands for ‘Nitro Power’.

VERY POS­I­TIVE

Over the chrono­graph, the MTR77NP gave me 11.3 ft.lbs. with 7.9 grain Cros­man Pre­miers. It hov­ers around 810 fps., shot-to-shot vari­a­tion is su­perb, and the bar­rel lock up is very pos­i­tive. The cock­ing force re­quired is only 16kg – on the 1000fps US model it is twice that.

The gun has an open-sight sys­tem, just as the real M16A4, and the rear sight is a peep-hole type with two el­e­ments to choose from – these flip up and down. The windage and el­e­va­tion ad­just­ments are very good, in­dexed wheel types. The el­e­va­tion wheel is in the han­dle, but the cir­cum­fer­ence is such that you can get at the wheel from either side. It has a large ‘UP’ and ‘DN’ with ar­rows on the right-hand side of the han­dle and the windage wheel is on the left-hand side. The front sight, as you would ex­pect ,is the same small, rec­tan­gu­lar post as on the real one, with one tiny change – it can­not be moved up and down like the real one.

PUNCHY

The sight base is long at 515mm, mak­ing it an ac­cu­rate gun when us­ing open sights, but it is not pos­si­ble to zero the open sights at a very short range, such as six yards. The gun comes com­plete with a Cen­ter Point 4 x 32 scope and a set of two-piece scope mounts. You first have to take off the carry han­dle, which has the rear sight de­signed into the back of it. There are two fin­ger screws on the right-hand side, and you can also take off the front sight. This gives you a 155mm long Pi­catinny rail on which to fit the scope. Of course ,you don’t have to use the Cen­ter Point scope, if you are go­ing for short-range plink­ing I’d fit a red dot. Bear in mind that the in­line bar­rel gives you a raised sight line above the bar­rel of 70mm to the top of the open sights. De­pend­ing upon the range you zero at, you will have re­mem­ber that your shot will fall lower than your sights. The scope mounts Cros­man in­clude for the 4 x 32 scope give a height of 40mm from the rail to the cen­ter­line of the scope, the same as the open sights that come fit­ted to the gun.

The fir­ing cy­cle of the gas-ram is very punchy, quick and adds to the ac­cu­racy. This is a very cool-look­ing and very ca­pa­ble air ri­fle – well worth the money, in my book.

Thanks to all at ASI for help in the pro­duc­tion of this ar­ti­cle.

Tim likes shoot­ing the MTR77NP.

The clever de­sign hids the fact that it’s a break-bar­rel very well.

The cock­ing stroke is long as you can see here.

It’s a mas­sive ad­just­ment wheel on the rear sight.

You have a handy stor­age space in the faux mag’.

The tiny front post.

There’s a small peep sight.

The bolt re­lease and safety catch are dum­mies.

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