2025年1月2日 · For over 15 years, PTR has been committed to making the world's most reliable and accurate roller-lock weapons.

The PTR 63 redefines modern firepower, chambered in the versatile 5.56x45mm. This state-of-the-art rifle integrates a roller-delayed blowback system, ensuring smooth operation under various conditions.

The VENT Spiritus™ 5.56i is a must-have for firearm enthusiasts and professionals seeking unmatched performance, durability, and versatility. Built with innovative Purposely Induced Porosity™ and cutting-edge 3D-printed Inconel for superior strength and heat resistance, it offers compact dimensions, lightweight design, and a sleek heat ...

2012年5月7日 · ptr是指向函数的指针变量，所以可把函数max ()赋给ptr作为ptr的值，即把max ()的入口地址赋给ptr,以后就可以用ptr来调用该函数，实际上ptr和max都指向同一个入口地址，不同就是ptr是一个指针变量，不像函数名称那样是死的，它可以指向任何函数，就看你像怎么做了。 在程序中把哪个函数的地址赋给它，它就指向哪个函数。 而后用指针变量调用它，因此可以先后指向不同的函数，不过注意，指向函数的指针变量没有++和--运算，用时要小心。 只不过名字叫的不 …

Featuring a precision 16.5-inch barrel with a tight 1 in 7″ right-hand twist, the PTR 63 is engineered for accuracy. It’s threaded at 1/2×28 to allow for a range of customizations. The heart of this rifle, a nitride heat-treated carrier, incorporates a tungsten dead-blow weight compatible with full-auto bolt carriers.

PTR is located in Aynor, South Carolina and builds a wide variety of Roller Lock Firearms. Ranging in caliber from 9mm, 762 x39 and the hard hitting .308 round. PTR offers both pistol and rifle configurations that are both reliable and accurate & backed up by a Lifetime Warranty. There are 23 products. As low as $77.24/mo with . Learn More.

2012年12月5日 · int a[4][5]可以这样理解：先有5个元素的一维整型数组，再将这4个这样的整型数组的指针放在一个一维数组里 那么，int (*ptr)[5]中的ptr就是具有5个元素的一维整型数组的指针

Browse our PTR Rifles on BudsGunShop.com. We offer the largest selection of Rifles and our everyday low prices making shopping easy.